Citation Rankings
Highly Cited Researchers
Highly Cited Researchers 139 Scientists Citation in Sierra Leone Rankings - 2025
The Citation Rankings (Highly Cited Researchers) list highlight the most cited and influential researchers across a vast range of scientific fields, covering 211 main and sub-disciplines, including the Art and Humanities Citation Rankings and Social Sciences and Humanities Citation Rankings. This service, offered exclusively by AD Scientific Index, aims to provide a balanced perspective by excluding data from CERN and other statistical sources that disproportionately favor certain researchers, particularly in the social sciences and humanities. This unique approach addresses the advantages researchers with multi-author publications and CERN involvement hold over others. Furthermore, citation rankings help uncover rule violations and unethical practices within the research community. For more detailed citation analyses, explore the Scientists Last 6 Years Citation Index, Universities Total Citations Rankings 2025, and Universities Last 6 Years Citations Rankings 2025.
* Total Citation Counts Rankings
Ranking Based On Selection: 1
Statistics
Epidemiology
Public Health
GIS
Literatur
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
24,349
11,924
0.490
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* Total Citation Counts Rankings
Ranking Based On Selection: 2
Social change in post conflict countries
social response to zoonotic disease
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18,151
3,311
0.182
* Total Citation Counts Rankings
Ranking Based On Selection: 3
Neglected Tropical Diseases
Entomology
Health System
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,412
5,233
0.363
* Total Citation Counts Rankings
Ranking Based On Selection: 4
land cover
pollution
Sierra Leon
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,959
1,260
0.254
* Total Citation Counts Rankings
Ranking Based On Selection: 5
Tropical Medicine
Epidemiology
Infectious diseases
surveillance
mhealt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,324
3,221
0.745
* Total Citation Counts Rankings
Ranking Based On Selection: 6
Health policy and practic
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,666
2,222
0.833
* Total Citation Counts Rankings
Ranking Based On Selection: 7
Infectious Diseases
Public Health and Internal Medicin
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,952
1,856
0.951
* Total Citation Counts Rankings
Ranking Based On Selection: 8
Data Science
Data Analytics
AI
Social Justic
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,836
906
0.493
* Total Citation Counts Rankings
Ranking Based On Selection: 9
Cardiology
Internal Medicin
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,833
1,133
0.618
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* Total Citation Counts Rankings
Ranking Based On Selection: 10
Economic Policy Management
Macroeconomic Forecasting
Sustainable Livelihoods
Economic Methodolog
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,829
1,100
0.601
* Total Citation Counts Rankings
Ranking Based On Selection: 11
Agricultural Engineerin
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,777
922
0.519
* Total Citation Counts Rankings
Ranking Based On Selection: 12
Renewable energy technologies
greenhouse gas mitigation
solid waste management and utilizatio
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,561
412
0.264
* Total Citation Counts Rankings
Ranking Based On Selection: 13
Pathology
Medicine
Physiology
Hepatogastroenterolog
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,209
960
0.794
* Total Citation Counts Rankings
Ranking Based On Selection: 14
Renewable energ
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,164
332
0.285
* Total Citation Counts Rankings
Ranking Based On Selection: 15
Epidemiology of Infectious Diseases
Bacteriology
Virology
Sequencing
Bioinformatic
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,065
736
0.691
* Total Citation Counts Rankings
Ranking Based On Selection: 16
Cereal Crops Research. plant stress
soil remediatio
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
924
772
0.835
* Total Citation Counts Rankings
Ranking Based On Selection: 17
Sacred Groves
Podostemaceae
Tropical Plants
Ecological Surveillance of Viral Pathogen
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
909
486
0.535
* Total Citation Counts Rankings
Ranking Based On Selection: 18
Argriculture
Plant Physiology
Biological Nitrogen Fixation
Water Quality Managemen
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
859
662
0.771
* Total Citation Counts Rankings
Ranking Based On Selection: 19
Blue Economic diversification in the era of Climate chang
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
816
498
0.610
* Total Citation Counts Rankings
Ranking Based On Selection: 20
Medicinal plant research
Veterinary Scienc
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
803
440
0.548
* Total Citation Counts Rankings
Ranking Based On Selection: 21
Biodiversity
Pharmacognosy
Environmental Mgt.
Taxonomy and Biosystematic
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
671
619
0.923
* Total Citation Counts Rankings
Ranking Based On Selection: 22
developmental issue
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
655
571
0.872
* Total Citation Counts Rankings
Ranking Based On Selection: 23
heavy metals
wastewater
grey water
solid waste managemen
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
563
259
0.460
* Total Citation Counts Rankings
Ranking Based On Selection: 24
Physical Activity & Public Health
Public Health Nutrition
Health Education Promotio
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
547
320
0.585
* Total Citation Counts Rankings
Ranking Based On Selection: 25
Environmental Science and Engineerin
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
496
269
0.542
* Total Citation Counts Rankings
Rankings
32,027
1
1
Ranking Based On Selection: 1
Osman Sankoh
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
24,349
11,924
0.490
Statistics
Epidemiology
Public Health
GIS
Literatur
* Total Citation Counts Rankings
Rankings
48,242
2
1
Ranking Based On Selection: 2
Paul Richards
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18,151
3,311
0.182
Social change in post conflict countries
social response to zoonotic disease
* Total Citation Counts Rankings
Rankings
65,600
3
2
Ranking Based On Selection: 3
Bockarie M
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,412
5,233
0.363
* Total Citation Counts Rankings
Rankings
214,273
4
3
Ranking Based On Selection: 4
Richard Wadsworth
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,959
1,260
0.254
land cover
pollution
Sierra Leon
* Total Citation Counts Rankings
Rankings
243,403
5
4
Ranking Based On Selection: 5
Rashid Ansumana
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,324
3,221
0.745
Tropical Medicine
Epidemiology
Infectious diseases
surveillance
mhealt
* Total Citation Counts Rankings
Rankings
367,019
6
1
Ranking Based On Selection: 6
Haja Ramatulai Wurie
University of Sierra Leone
Tower Hill, Sierra Leone
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,666
2,222
0.833
Health policy and practic
* Total Citation Counts Rankings
Rankings
462,243
7
2
Ranking Based On Selection: 7
Sulaiman Lakoh
University of Sierra Leone
Tower Hill, Sierra Leone
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,952
1,856
0.951
Infectious Diseases
Public Health and Internal Medicin
* Total Citation Counts Rankings
Rankings
482,442
8
5
Ranking Based On Selection: 8
Ibrahim Denis Fofanah
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,836
906
0.493
Data Science
Data Analytics
AI
Social Justic
* Total Citation Counts Rankings
Rankings
482,942
9
3
Ranking Based On Selection: 9
James Baligeh Walter Russell
University of Sierra Leone
Tower Hill, Sierra Leone
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,833
1,133
0.618
Cardiology
Internal Medicin
* Total Citation Counts Rankings
Rankings
483,632
10
1
Ranking Based On Selection: 10
Emerson Abraham Jackson|Emerson A. Jackson, E.A. Jackson
Bank of Sierra Leone
Freetown, Sierra Leone
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,829
1,100
0.601
Economic Policy Management
Macroeconomic Forecasting
Sustainable Livelihoods
Economic Methodolog
Is Your University Ready for the Future?
Compare your institution’s global, national, and city-level ranking with its 20 closest competitors and set strategic goals.
Gain insights from detailed performance analyses of scientists across 13 major disciplines, identify your strengths, improve weaknesses, and gain a competitive edge.. Check Your Free Sample Performance Analysis
* Total Citation Counts Rankings
Rankings
493,374
11
6
Ranking Based On Selection: 11
Juana P. Moiwo
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,777
922
0.519
Agricultural Engineerin
* Total Citation Counts Rankings
Rankings
537,125
12
4
Ranking Based On Selection: 12
Kelleh Gbawuru Mansaray
University of Sierra Leone
Tower Hill, Sierra Leone
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,561
412
0.264
Renewable energy technologies
greenhouse gas mitigation
solid waste management and utilizatio
* Total Citation Counts Rankings
Rankings
626,545
13
5
Ranking Based On Selection: 13
Babatunde Duduyemi
University of Sierra Leone
Tower Hill, Sierra Leone
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,209
960
0.794
Pathology
Medicine
Physiology
Hepatogastroenterolog
* Total Citation Counts Rankings
Rankings
640,409
14
7
Ranking Based On Selection: 14
Hindowa Lebbie
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,164
332
0.285
* Total Citation Counts Rankings
Rankings
671,923
15
1
Ranking Based On Selection: 15
Raoul Emeric Guetiya Wadoum
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,065
736
0.691
Epidemiology of Infectious Diseases
Bacteriology
Virology
Sequencing
Bioinformatic
* Total Citation Counts Rankings
Rankings
723,198
16
1
Ranking Based On Selection: 16
Adam S Kanu
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
924
772
0.835
Cereal Crops Research. plant stress
soil remediatio
* Total Citation Counts Rankings
Rankings
729,246
17
8
Ranking Based On Selection: 17
Aiah Lebbie
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
909
486
0.535
Sacred Groves
Podostemaceae
Tropical Plants
Ecological Surveillance of Viral Pathogen
* Total Citation Counts Rankings
Rankings
749,318
18
9
Ranking Based On Selection: 18
Sheku Alfred Kanu
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
859
662
0.771
Argriculture
Plant Physiology
Biological Nitrogen Fixation
Water Quality Managemen
* Total Citation Counts Rankings
Rankings
767,461
19
10
Ranking Based On Selection: 19
Mathew Didlyn Kpundeh|Kpundeh Mathew Didlyn, Kpundeh M.D, Mathew D. Kpundeh
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
816
498
0.610
Blue Economic diversification in the era of Climate chang
* Total Citation Counts Rankings
Rankings
773,155
20
11
Ranking Based On Selection: 20
Victor. P. Bagla
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
803
440
0.548
Medicinal plant research
Veterinary Scienc
* Total Citation Counts Rankings
Rankings
834,834
21
6
Ranking Based On Selection: 21
Adepoju Adeyinka Olufemi|Adeyinka O. ADEPOJU, Adeyinka ADEPOJU, ADEPOJU, Adeyinka Olufemi
University of Sierra Leone
Tower Hill, Sierra Leone
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
671
619
0.923
Biodiversity
Pharmacognosy
Environmental Mgt.
Taxonomy and Biosystematic
* Total Citation Counts Rankings
Rankings
843,130
22
12
Ranking Based On Selection: 22
Alhaji Morlai Bangura
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
655
571
0.872
* Total Citation Counts Rankings
Rankings
895,342
23
7
Ranking Based On Selection: 23
Ronnie Frazer-Williams
University of Sierra Leone
Tower Hill, Sierra Leone
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
563
259
0.460
* Total Citation Counts Rankings
Rankings
905,886
24
13
Ranking Based On Selection: 24
Samuel Joseph Bebeley
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
547
320
0.585
Physical Activity & Public Health
Public Health Nutrition
Health Education Promotio
* Total Citation Counts Rankings
Rankings
945,365
25
8
Ranking Based On Selection: 25
Edward Hinga Sandy
University of Sierra Leone
Tower Hill, Sierra Leone
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
496
269
0.542
Environmental Science and Engineerin