Citation Rankings
Highly Cited Researchers
Highly Cited Researchers 126 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 197 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
Literature
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
24,107
11,701
0.485
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* Total Citation Counts Rankings
Ranking Based On Selection: 2
Social change in post conflict countries
social response to zoonotic diseases
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18,099
3,279
0.181
* Total Citation Counts Rankings
Ranking Based On Selection: 3
Neglected Tropical Diseases
Entomology
Health Systems
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,114
4,950
0.351
* Total Citation Counts Rankings
Ranking Based On Selection: 4
land cover
pollution
Sierra Leone
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,922
1,241
0.252
* Total Citation Counts Rankings
Ranking Based On Selection: 5
Tropical Medicine
Epidemiology
Infectious diseases
surveillance
mhealth
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,287
3,182
0.742
* Total Citation Counts Rankings
Ranking Based On Selection: 6
Health policy and practice
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,596
2,155
0.830
* Total Citation Counts Rankings
Ranking Based On Selection: 7
Infectious Diseases
Public Health and Internal Medicine
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,894
1,799
0.950
* Total Citation Counts Rankings
Ranking Based On Selection: 8
Data Science
Data Analytics
AI
Social Justice
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,705
788
0.462
* Total Citation Counts Rankings
Ranking Based On Selection: 9
Cardiology
Internal Medicine
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,801
1,104
0.613
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Through advanced, institution-specific analytics and benchmarking, gain data-driven strategic insights into your academic performance, global standing, and competitive strengths. Compare your institution with 20 similarly ranked institutions at city, country, regional, and global levels, as well as with those in similar standings across 13 subjects, to uncover your institution’s strengths. More Info
* Total Citation Counts Rankings
Ranking Based On Selection: 10
Economic Policy Management
Macroeconomic Forecasting
Applied Econometric Analysis
Livelihoods
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,811
1,084
0.599
* Total Citation Counts Rankings
Ranking Based On Selection: 11
Agricultural Engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,759
906
0.515
* Total Citation Counts Rankings
Ranking Based On Selection: 12
Renewable energy technologies
greenhouse gas mitigation
solid waste management and utilization
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,555
407
0.262
* Total Citation Counts Rankings
Ranking Based On Selection: 13
Pathology
Medicine
Physiology
Hepatogastroenterology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,189
942
0.792
* Total Citation Counts Rankings
Ranking Based On Selection: 14
Renewable energy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,158
327
0.282
* Total Citation Counts Rankings
Ranking Based On Selection: 15
Epidemiology of Infectious Diseases
Bacteriology
Virology
Sequencing
Bioinformatics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,049
720
0.686
* Total Citation Counts Rankings
Ranking Based On Selection: 16
Cereal Crops Research. plant stress
soil remediation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
907
755
0.832
* Total Citation Counts Rankings
Ranking Based On Selection: 17
Sacred Groves
Podostemaceae
Tropical Plants
Ecological Surveillance of Viral Pathogens
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
901
478
0.531
* Total Citation Counts Rankings
Ranking Based On Selection: 18
Argriculture
Plant Physiology
Biological Nitrogen Fixation
Water Quality Management
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
837
640
0.765
* Total Citation Counts Rankings
Ranking Based On Selection: 19
Medicinal plant research
Veterinary Science
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
791
431
0.545
* Total Citation Counts Rankings
Ranking Based On Selection: 20
Blue Economic diversification in the era of Climate change
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
804
487
0.606
* Total Citation Counts Rankings
Ranking Based On Selection: 21
Biodiversity
Pharmacognosy
Environmental Mgt.
Taxonomy and Biosystematics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
653
597
0.914
* Total Citation Counts Rankings
Ranking Based On Selection: 22
developmental issues
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
627
544
0.868
* Total Citation Counts Rankings
Ranking Based On Selection: 23
heavy metals
wastewater
grey water
solid waste management
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
555
252
0.454
* Total Citation Counts Rankings
Ranking Based On Selection: 24
Physical Activity & Public Health
Public Health Nutrition
Health Education Promotion
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 Engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
493
266
0.540
* Total Citation Counts Rankings
Rankings
32,284
1
1
Ranking Based On Selection: 1
Osman Sankoh
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
24,107
11,701
0.485
Statistics
Epidemiology
Public Health
GIS
Literature
* Total Citation Counts Rankings
Rankings
46,618
2
1
Ranking Based On Selection: 2
Paul Richards
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18,099
3,279
0.181
Social change in post conflict countries
social response to zoonotic diseases
* Total Citation Counts Rankings
Rankings
67,622
3
2
Ranking Based On Selection: 3
Bockarie M
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,114
4,950
0.351
* Total Citation Counts Rankings
Rankings
214,674
4
3
Ranking Based On Selection: 4
Richard Wadsworth
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,922
1,241
0.252
land cover
pollution
Sierra Leone
* Total Citation Counts Rankings
Rankings
244,894
5
4
Ranking Based On Selection: 5
Rashid Ansumana
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,287
3,182
0.742
Tropical Medicine
Epidemiology
Infectious diseases
surveillance
mhealth
* Total Citation Counts Rankings
Rankings
373,307
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
2,596
2,155
0.830
Health policy and practice
* Total Citation Counts Rankings
Rankings
477,320
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
1,894
1,799
0.950
Infectious Diseases
Public Health and Internal Medicine
* Total Citation Counts Rankings
Rankings
478,800
8
5
Ranking Based On Selection: 8
Ibrahim Denis Fofanah
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,705
788
0.462
Data Science
Data Analytics
AI
Social Justice
* Total Citation Counts Rankings
Rankings
488,499
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
1,801
1,104
0.613
Cardiology
Internal Medicine
* Total Citation Counts Rankings
Rankings
488,503
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
1,811
1,084
0.599
Economic Policy Management
Macroeconomic Forecasting
Applied Econometric Analysis
Livelihoods
360° Institutional Performance & Benchmarking Click Here for Live Demo
Through advanced, institution-specific analytics and benchmarking, gain data-driven strategic insights into your academic performance, global standing, and competitive strengths. Compare your institution with 20 similarly ranked institutions at city, country, regional, and global levels, as well as with those in similar standings across 13 subjects, to uncover your institution’s strengths. More Info
* Total Citation Counts Rankings
Rankings
497,557
11
6
Ranking Based On Selection: 11
Juana P. Moiwo
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,759
906
0.515
Agricultural Engineering
* Total Citation Counts Rankings
Rankings
533,885
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
1,555
407
0.262
Renewable energy technologies
greenhouse gas mitigation
solid waste management and utilization
* Total Citation Counts Rankings
Rankings
638,070
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
1,189
942
0.792
Pathology
Medicine
Physiology
Hepatogastroenterology
* Total Citation Counts Rankings
Rankings
638,614
14
7
Ranking Based On Selection: 14
Hindowa Lebbie
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,158
327
0.282
* Total Citation Counts Rankings
Rankings
670,413
15
1
Ranking Based On Selection: 15
Raoul Emeric Guetiya Wadoum
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,049
720
0.686
Epidemiology of Infectious Diseases
Bacteriology
Virology
Sequencing
Bioinformatics
* Total Citation Counts Rankings
Rankings
725,827
16
1
Ranking Based On Selection: 16
Adam S Kanu
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
907
755
0.832
Cereal Crops Research. plant stress
soil remediation
* Total Citation Counts Rankings
Rankings
729,644
17
8
Ranking Based On Selection: 17
Aiah Lebbie
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
901
478
0.531
Sacred Groves
Podostemaceae
Tropical Plants
Ecological Surveillance of Viral Pathogens
* Total Citation Counts Rankings
Rankings
757,282
18
9
Ranking Based On Selection: 18
Sheku Alfred Kanu
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
837
640
0.765
Argriculture
Plant Physiology
Biological Nitrogen Fixation
Water Quality Management
* Total Citation Counts Rankings
Rankings
766,958
19
10
Ranking Based On Selection: 19
Victor. P. Bagla
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
791
431
0.545
Medicinal plant research
Veterinary Science
* Total Citation Counts Rankings
Rankings
768,268
20
11
Ranking Based On Selection: 20
Mathew Didlyn Kpundeh|Kpundeh Mathew Didlyn, Kpundeh M.D, Mathew D. Kpundeh
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
804
487
0.606
Blue Economic diversification in the era of Climate change
* Total Citation Counts Rankings
Rankings
847,504
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
653
597
0.914
Biodiversity
Pharmacognosy
Environmental Mgt.
Taxonomy and Biosystematics
* Total Citation Counts Rankings
Rankings
863,485
22
12
Ranking Based On Selection: 22
Alhaji Morlai Bangura
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
627
544
0.868
* Total Citation Counts Rankings
Rankings
892,204
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
555
252
0.454
* Total Citation Counts Rankings
Rankings
892,716
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 Promotion
* Total Citation Counts Rankings
Rankings
923,363
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
493
266
0.540
Environmental Science and Engineering
