Citation Rankings (Highly Cited Researchers) 2024 and list of influential and most cited researchers in Agriculture and Forestry, Art, Design and Architecture, Business and Management, Economics and Econometrics, Education, Engineering and Technology, History, Philosophy, Theology, Law, Medicine and Health Sciences, Natural Sciences and Social Sciences and their 256 sub-branches is a unique service offered only by “AD Scientific Index”. You can see the most cited and influential researchers in the country and region. See also for more specific citation analyses: "last 6 years citation index" Universities Rankings 2024 (Sort by: Total Citations) and Universities Rankings 2024 (Sort by : Last 6 Years Citations)
* Total Citation Counts Rankings
World Rank
929,580
Country Rank
26
Institution Rank : 8
![](https://cdn.adscientificindex.com/logos/11375.jpg)
![Sierra Leone](/flags/sl.png)
![Adepoju Adeyinka Olufemi|Adeyinka O. ADEPOJU, Adeyinka ADEPOJU, ADEPOJU, Adeyinka Olufemi](https://cdn.adscientificindex.com/pictures/80/3471070.jpg)
Institutional and Educational Research
Environmental Management
Taxonomy and Biosystematics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
458
432
0.943
* Total Citation Counts Rankings
World Rank
931,794
Country Rank
27
Institution Rank : 9
![](https://cdn.adscientificindex.com/logos/11375.jpg)
![Sierra Leone](/flags/sl.png)
![Solomon Peter Gbanie](/pictures/53/4308969.jpg)
Geospatial Science & Environmental Geography
Computational Geography
Spatial Analysis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
455
281
0.618
* Total Citation Counts Rankings
World Rank
955,498
Country Rank
28
Institution Rank : 14
![](https://cdn.adscientificindex.com/logos/6383.jpg)
![Sierra Leone](/flags/sl.png)
![Roland Suluku](https://cdn.adscientificindex.com/pictures/4f/4360701.jpg)
Animal dtsease dog rabies
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
419
266
0.635
* Total Citation Counts Rankings
World Rank
984,277
Country Rank
29
Institution Rank : 2
![](https://cdn.adscientificindex.com/logos/16744.png)
![Sierra Leone](/flags/sl.png)
![Senesie Swaray](https://cdn.adscientificindex.com/pictures/79/4481064.jpg)
Genetics and Breeding
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
378
378
1.000
* Total Citation Counts Rankings
World Rank
1,019,248
Country Rank
30
Institution Rank : 15
![](https://cdn.adscientificindex.com/logos/6383.jpg)
![Sierra Leone](/flags/sl.png)
![Moses Fayiah](https://cdn.adscientificindex.com/pictures/02/4360742.jpg)
Forestry
Biodiversity
Ecosystem function Environment
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
333
329
0.988
* Total Citation Counts Rankings
World Rank
1,051,587
Country Rank
31
Institution Rank : 10
![](https://cdn.adscientificindex.com/logos/11375.jpg)
![Sierra Leone](/flags/sl.png)
![Aisha Fofana Ibrahim](https://cdn.adscientificindex.com/pictures/cc/4308801.jpg)
Women/Gender Sudies
peace and conflict
literature
development Studies
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
297
166
0.559
* Total Citation Counts Rankings
World Rank
1,065,487
Country Rank
32
Institution Rank : 16
![](https://cdn.adscientificindex.com/logos/6383.jpg)
![Sierra Leone](/flags/sl.png)
![Alie Kamara](https://cdn.adscientificindex.com/pictures/7a/4308806.jpg)
soil fertility
soil chemistry
biochar
soil erosion and nutrient leaching
remote sensing and GIS
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
283
218
0.770
* Total Citation Counts Rankings
World Rank
1,092,552
Country Rank
33
Institution Rank : 17
![](https://cdn.adscientificindex.com/logos/6383.jpg)
![Sierra Leone](/flags/sl.png)
![Braima Koroma](https://cdn.adscientificindex.com/pictures/e9/4360663.jpg)
Development planning and urban sustainability
Environment
Informality
Mobility andTransport
Disaster Risk Reduction and Citie
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
258
244
0.946
* Total Citation Counts Rankings
World Rank
1,114,350
Country Rank
34
Institution Rank : 18
![](https://cdn.adscientificindex.com/logos/6383.jpg)
![Sierra Leone](/flags/sl.png)
![Lawrence Sao Babawo](https://cdn.adscientificindex.com/pictures/b9/4986726.jpg)
Control of Infectious Diseases
Health Systems & Health Policy
Pandemic/Epidemic Outbreaks
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
240
240
1.000
* Total Citation Counts Rankings
World Rank
1,115,769
Country Rank
35
Institution Rank : 3
![](https://cdn.adscientificindex.com/logos/16744.png)
![Sierra Leone](/flags/sl.png)
![M. Jalloh](https://cdn.adscientificindex.com/pictures/81/5011089.jpg)
Genetics and Breeding
Crop Protection
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
239
234
0.979
* Total Citation Counts Rankings
World Rank
1,117,220
Country Rank
36
Institution Rank : 4
![](https://cdn.adscientificindex.com/logos/16744.png)
![Sierra Leone](/flags/sl.png)
![Moses Ahmed Daramy](/user/assets/images/profile/no-profile-photo.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
238
224
0.941
* Total Citation Counts Rankings
World Rank
1,133,102
Country Rank
37
Institution Rank : 11
![](https://cdn.adscientificindex.com/logos/11375.jpg)
![Sierra Leone](/flags/sl.png)
![Onome Abiri](https://cdn.adscientificindex.com/pictures/3d/4986743.jpg)
Clinical Trials
Pharmacy
Pharmacology
Pharmacoepidemiology
Pharmacovigilance
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
226
215
0.951
* Total Citation Counts Rankings
World Rank
1,135,099
Country Rank
38
Institution Rank : 12
![](https://cdn.adscientificindex.com/logos/11375.jpg)
![Sierra Leone](/flags/sl.png)
![Alhaji Alusine Jalloh](/pictures/41/4308804.jpg)
Paediatrics and Paeditric Neurology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
225
134
0.596
* Total Citation Counts Rankings
World Rank
1,147,455
Country Rank
39
Institution Rank : 5
![](https://cdn.adscientificindex.com/logos/16744.png)
![Sierra Leone](/flags/sl.png)
![Osman Nabay](https://cdn.adscientificindex.com/pictures/8f/4480933.jpg)
Agricultural Development and Policy
Applied Economic Research
Project Management and Program
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
216
157
0.727
* Total Citation Counts Rankings
World Rank
1,161,325
Country Rank
40
Institution Rank : 2
![](https://cdn.adscientificindex.com/logos/16816.png)
![Sierra Leone](/flags/sl.png)
![Mohamed Jabbie](https://cdn.adscientificindex.com/pictures/f1/4488333.jpg)
Data Science
Applied Econometrics
Marketing Analytics
Sustainable Development
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
206
206
1.000
* Total Citation Counts Rankings
World Rank
1,167,724
Country Rank
41
Institution Rank : 13
![](https://cdn.adscientificindex.com/logos/11375.jpg)
![Sierra Leone](/flags/sl.png)
![Samuel Saidu](https://cdn.adscientificindex.com/pictures/f8/4986744.jpg)
Research and programs
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
202
200
0.990
* Total Citation Counts Rankings
World Rank
1,179,312
Country Rank
42
Institution Rank : 2
![](https://cdn.adscientificindex.com/logos/2336.jpg)
![Sierra Leone](/flags/sl.png)
![Enoch Terlumun Iortyom](https://cdn.adscientificindex.com/pictures/7b/3574678.jpg)
Geographies of Food and Agriculture
Food Security and Sustainable Development
Environmental
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
195
178
0.913
* Total Citation Counts Rankings
World Rank
1,182,212
Country Rank
43
Institution Rank : 2
![](https://cdn.adscientificindex.com/logos/11167.png)
![Sierra Leone](/flags/sl.png)
![Ibrahim Abdulai Sawaneh](https://cdn.adscientificindex.com/pictures/68/3574679.jpg)
Management Science and Engineering
Computer Science & Technology
and Social Sciences
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
193
193
1.000
* Total Citation Counts Rankings
World Rank
1,199,636
Country Rank
44
Institution Rank : 19
![](https://cdn.adscientificindex.com/logos/6383.jpg)
![Sierra Leone](/flags/sl.png)
![Ibrahim Massaquoi|Ibrahim Bob Swaray, Swaray, Ibrahim](https://cdn.adscientificindex.com/pictures/8b/4563854.jpg)
Infectious Disease Epidemiology
Disease Surveillance
Vaccinology
Emerging infectious Diseases
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
183
183
1.000
* Total Citation Counts Rankings
World Rank
1,205,843
Country Rank
45
Institution Rank : 20
![](https://cdn.adscientificindex.com/logos/6383.jpg)
![Sierra Leone](/flags/sl.png)
![Denis Magnus Ken Amara](https://cdn.adscientificindex.com/pictures/b3/4986727.jpg)
Soil science
agronomy
climate change
land evaluation
remote sensing and GIS
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
180
148
0.822
* Total Citation Counts Rankings
World Rank
1,279,582
Country Rank
46
Institution Rank : 21
![](https://cdn.adscientificindex.com/logos/6383.jpg)
![Sierra Leone](/flags/sl.png)
![Augustus Osborne](https://cdn.adscientificindex.com/pictures/12/4488173.jpg)
Child and Adolescent Health
Maternal and Child Health
Public Health
Women's Health
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
144
143
0.993
* Total Citation Counts Rankings
World Rank
1,285,783
Country Rank
47
Institution Rank : 14
![](https://cdn.adscientificindex.com/logos/11375.jpg)
![Sierra Leone](/flags/sl.png)
![Kabba Santigie Bangura](/pictures/b8/4308885.jpg)
Development Geography
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
142
72
0.507
* Total Citation Counts Rankings
World Rank
1,291,668
Country Rank
48
Institution Rank : 22
![](https://cdn.adscientificindex.com/logos/6383.jpg)
![Sierra Leone](/flags/sl.png)
![Ibrahim A Bakarr](/pictures/68/4488274.jpg)
Ecology
Wildlife Management
Conservation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
139
136
0.978
* Total Citation Counts Rankings
World Rank
1,299,417
Country Rank
49
Institution Rank : 3
![](https://cdn.adscientificindex.com/logos/16816.png)
![Sierra Leone](/flags/sl.png)
![Edmund Tamuke](https://cdn.adscientificindex.com/pictures/ac/4488228.jpg)
Macroeconomic Forecasting
Applied Econometrics
Monetary Policy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
136
126
0.926
* Total Citation Counts Rankings
World Rank
1,306,737
Country Rank
50
Institution Rank : 23
![](https://cdn.adscientificindex.com/logos/6383.jpg)
![Sierra Leone](/flags/sl.png)
![Camilla Bangura](/pictures/7a/4986729.jpg)
Adolescents Health
Women's Health
Public Health
Data Analysis
Global Health Surveys.
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
133
132
0.992
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
929,580
![Sierra Leone](/flags/sl.png)
26
![](https://cdn.adscientificindex.com/logos/11375.jpg)
8
Adepoju Adeyinka Olufemi|Adeyinka O. ADEPOJU, Adeyinka ADEPOJU, ADEPOJU, Adeyinka Olufemi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
458
432
0.943
![](https://cdn.adscientificindex.com/logos/11375.jpg)
Institutional and Educational Research
Environmental Management
Taxonomy and Biosystematics
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
931,794
![Sierra Leone](/flags/sl.png)
27
![](https://cdn.adscientificindex.com/logos/11375.jpg)
9
Solomon Peter Gbanie
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
455
281
0.618
![](https://cdn.adscientificindex.com/logos/11375.jpg)
Geospatial Science & Environmental Geography
Computational Geography
Spatial Analysis
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
955,498
![Sierra Leone](/flags/sl.png)
28
![](https://cdn.adscientificindex.com/logos/6383.jpg)
14
Roland Suluku
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
419
266
0.635
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
984,277
![Sierra Leone](/flags/sl.png)
29
![](https://cdn.adscientificindex.com/logos/16744.png)
2
Senesie Swaray
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
378
378
1.000
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
1,019,248
![Sierra Leone](/flags/sl.png)
30
![](https://cdn.adscientificindex.com/logos/6383.jpg)
15
Moses Fayiah
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
333
329
0.988
![](https://cdn.adscientificindex.com/logos/6383.jpg)
Forestry
Biodiversity
Ecosystem function Environment
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
1,051,587
![Sierra Leone](/flags/sl.png)
31
![](https://cdn.adscientificindex.com/logos/11375.jpg)
10
Aisha Fofana Ibrahim
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
297
166
0.559
![](https://cdn.adscientificindex.com/logos/11375.jpg)
Women/Gender Sudies
peace and conflict
literature
development Studies
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
1,065,487
![Sierra Leone](/flags/sl.png)
32
![](https://cdn.adscientificindex.com/logos/6383.jpg)
16
Alie Kamara
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
283
218
0.770
![](https://cdn.adscientificindex.com/logos/6383.jpg)
soil fertility
soil chemistry
biochar
soil erosion and nutrient leaching
remote sensing and GIS
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
1,092,552
![Sierra Leone](/flags/sl.png)
33
![](https://cdn.adscientificindex.com/logos/6383.jpg)
17
Braima Koroma
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
258
244
0.946
![](https://cdn.adscientificindex.com/logos/6383.jpg)
Development planning and urban sustainability
Environment
Informality
Mobility andTransport
Disaster Risk Reduction and Citie
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
1,114,350
![Sierra Leone](/flags/sl.png)
34
![](https://cdn.adscientificindex.com/logos/6383.jpg)
18
Lawrence Sao Babawo
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
240
240
1.000
![](https://cdn.adscientificindex.com/logos/6383.jpg)
Control of Infectious Diseases
Health Systems & Health Policy
Pandemic/Epidemic Outbreaks
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
1,115,769
![Sierra Leone](/flags/sl.png)
35
![](https://cdn.adscientificindex.com/logos/16744.png)
3
M. Jalloh
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
239
234
0.979
![](https://cdn.adscientificindex.com/logos/16744.png)
Genetics and Breeding
Crop Protection
![Adscientificindex](/assets/images/banner_logo.png)
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![Adscientificindex](/assets/images/banner_click.png)
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
1,117,220
![Sierra Leone](/flags/sl.png)
36
![](https://cdn.adscientificindex.com/logos/16744.png)
4
Moses Ahmed Daramy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
238
224
0.941
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
1,133,102
![Sierra Leone](/flags/sl.png)
37
![](https://cdn.adscientificindex.com/logos/11375.jpg)
11
Onome Abiri
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
226
215
0.951
![](https://cdn.adscientificindex.com/logos/11375.jpg)
Clinical Trials
Pharmacy
Pharmacology
Pharmacoepidemiology
Pharmacovigilance
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
1,135,099
![Sierra Leone](/flags/sl.png)
38
![](https://cdn.adscientificindex.com/logos/11375.jpg)
12
Alhaji Alusine Jalloh
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
225
134
0.596
![](https://cdn.adscientificindex.com/logos/11375.jpg)
Paediatrics and Paeditric Neurology
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
1,147,455
![Sierra Leone](/flags/sl.png)
39
![](https://cdn.adscientificindex.com/logos/16744.png)
5
Osman Nabay
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
216
157
0.727
![](https://cdn.adscientificindex.com/logos/16744.png)
Agricultural Development and Policy
Applied Economic Research
Project Management and Program
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
1,161,325
![Sierra Leone](/flags/sl.png)
40
![](https://cdn.adscientificindex.com/logos/16816.png)
2
Mohamed Jabbie
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
206
206
1.000
![](https://cdn.adscientificindex.com/logos/16816.png)
Data Science
Applied Econometrics
Marketing Analytics
Sustainable Development
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
1,167,724
![Sierra Leone](/flags/sl.png)
41
![](https://cdn.adscientificindex.com/logos/11375.jpg)
13
Samuel Saidu
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
202
200
0.990
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
1,179,312
![Sierra Leone](/flags/sl.png)
42
![](https://cdn.adscientificindex.com/logos/2336.jpg)
2
Enoch Terlumun Iortyom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
195
178
0.913
![](https://cdn.adscientificindex.com/logos/2336.jpg)
Geographies of Food and Agriculture
Food Security and Sustainable Development
Environmental
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
1,182,212
![Sierra Leone](/flags/sl.png)
43
![](https://cdn.adscientificindex.com/logos/11167.png)
2
Ibrahim Abdulai Sawaneh
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
193
193
1.000
![](https://cdn.adscientificindex.com/logos/11167.png)
Management Science and Engineering
Computer Science & Technology
and Social Sciences
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
1,199,636
![Sierra Leone](/flags/sl.png)
44
![](https://cdn.adscientificindex.com/logos/6383.jpg)
19
Ibrahim Massaquoi|Ibrahim Bob Swaray, Swaray, Ibrahim
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
183
183
1.000
![](https://cdn.adscientificindex.com/logos/6383.jpg)
Infectious Disease Epidemiology
Disease Surveillance
Vaccinology
Emerging infectious Diseases
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
1,205,843
![Sierra Leone](/flags/sl.png)
45
![](https://cdn.adscientificindex.com/logos/6383.jpg)
20
Denis Magnus Ken Amara
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
180
148
0.822
![](https://cdn.adscientificindex.com/logos/6383.jpg)
Soil science
agronomy
climate change
land evaluation
remote sensing and GIS
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
1,279,582
![Sierra Leone](/flags/sl.png)
46
![](https://cdn.adscientificindex.com/logos/6383.jpg)
21
Augustus Osborne
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
144
143
0.993
![](https://cdn.adscientificindex.com/logos/6383.jpg)
Child and Adolescent Health
Maternal and Child Health
Public Health
Women's Health
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
1,285,783
![Sierra Leone](/flags/sl.png)
47
![](https://cdn.adscientificindex.com/logos/11375.jpg)
14
Kabba Santigie Bangura
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
142
72
0.507
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
1,291,668
![Sierra Leone](/flags/sl.png)
48
![](https://cdn.adscientificindex.com/logos/6383.jpg)
22
Ibrahim A Bakarr
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
139
136
0.978
![](https://cdn.adscientificindex.com/logos/6383.jpg)
Ecology
Wildlife Management
Conservation
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
1,299,417
![Sierra Leone](/flags/sl.png)
49
![](https://cdn.adscientificindex.com/logos/16816.png)
3
Edmund Tamuke
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
136
126
0.926
![](https://cdn.adscientificindex.com/logos/16816.png)
Macroeconomic Forecasting
Applied Econometrics
Monetary Policy
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
1,306,737
![Sierra Leone](/flags/sl.png)
50
![](https://cdn.adscientificindex.com/logos/6383.jpg)
23
Camilla Bangura
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
133
132
0.992
![](https://cdn.adscientificindex.com/logos/6383.jpg)
Adolescents Health
Women's Health
Public Health
Data Analysis
Global Health Surveys.