Citation Rankings (Highly Cited Researchers) and the list of the most cited and influential researchers cover a wide range of scientific fields, spanning 197 main and sub-disciplines, as well as the Art and Humanities Citation Rankings and Social Sciences and Humanities Citation Rankings, offering a unique service. Additionally, the list without CERN, Statistical Data, etc., provided exclusively by “AD Scientific Index”, is part of our effort to balance the situation created by CERN and researchers with statistical data, who have an advantage over others, especially those in the social and humanities fields. There should be new regulations for multi-author and CERN papers. Citation lists also reveal many rule violations and unethical practices. See also for more specific citation analyses: Scientists Last 6 years Citation Index, Universities Total Citations Rankings 2025 and Universities Last 6 Years Citations Rankings 2025
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :1
Biological water and wastewater Treatment
Bio-energy recovery
Application of nanoparticles
Environmental conservation and sustainability
Climate change and adaptation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
620
504
0.813
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :2
Plant pathology
Integrated pest management (IPM)
Plant breeding
Insect pathology Plant resistance
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
790
399
0.505
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :3
Financial Intermediation and Deepening
Bank Diversification
Corporate Governance
Stock Market
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
233
185
0.794
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :4
Plant breeding and Agronomy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
276
176
0.638
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :5
Land Use Planning
Agricultural Geography
Environmental Management
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
178
133
0.747
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :6
Health Systems Management
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
154
118
0.766
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :7
Educational Psychology
Teacher Education
Human Growth and Development
Guidance and Counselling
Cognitive Psychology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
242
100
0.413
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :8
Human Resource Management
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
146
99
0.678
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :9
Communication
Public Relations
Media studies
Journalism
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
106
93
0.877
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :10
Communication
Language
Education
Reading
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
218
85
0.390
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :11
Life Sciences
Bacillus thuringiensis
Artificial Intelligence
Biosafety
Apiculture
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
164
79
0.482
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :12
Education management and Leadership
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
133
76
0.571
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :13
Environmental Planning and Management
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
68
67
0.985
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :14
Curriculum studies
Education Management and research in education
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
94
62
0.660
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :15
molecular biology
Biotechnology
Biochemistry
Genetics and Bioinformatics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
98
61
0.622
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :16
Teacher Professional Development
Curriculum and Instructional Design
and Integrating Technology in Teaching
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
56
52
0.929
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :17
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
90
49
0.544
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :18
Agricultural Education
Teaching Methods
Curricula Studies
Agricultural Extension
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
69
46
0.667
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :19
Artificial Intelligence
Databases
Health Informatics
Telemedicine and eHealth
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
46
46
1.000
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :20
Public Sector Economics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
56
43
0.768
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :21
Gerontology
Research
Sociology of Marriage and Family
Rural and Community Development
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
55
43
0.782
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :22
project planning and managemnt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
47
37
0.787
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :23
Management
Entrepreneurship
Educational Management
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
69
36
0.522
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :24
Macroeconomic policy Analysis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
129
34
0.264
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :25
Linguistics
language and communication
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
57
34
0.596
John Justo Ambuchi
Rongo University
Rongo, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
620
504
0.813
Biological water and wastewater Treatment
Bio-energy recovery
Application of nanoparticles
Environmental conservation and sustainability
Climate change and adaptation
Peter Arama
Rongo University
Rongo, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
790
399
0.505
Plant pathology
Integrated pest management (IPM)
Plant breeding
Insect pathology Plant resistance
Jonathan Mulwa
Rongo University
Rongo, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
233
185
0.794
Financial Intermediation and Deepening
Bank Diversification
Corporate Governance
Stock Market
Evans Ouma
Rongo University
Rongo, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
276
176
0.638
Amos Onyango Ouma
Rongo University
Rongo, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
178
133
0.747
Land Use Planning
Agricultural Geography
Environmental Management
Adoyo Maureen A.
Rongo University
Rongo, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
154
118
0.766
Hezborn Mn Kodero
Rongo University
Rongo, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
242
100
0.413
Educational Psychology
Teacher Education
Human Growth and Development
Guidance and Counselling
Cognitive Psychology
Jonathan William Omolo
Rongo University
Rongo, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
146
99
0.678
John Oluoch
Rongo University
Rongo, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
106
93
0.877
Jane Kembo
Rongo University
Rongo, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
218
85
0.390
Z. Ngalo Otieno-Ayayo
Rongo University
Rongo, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
164
79
0.482
Life Sciences
Bacillus thuringiensis
Artificial Intelligence
Biosafety
Apiculture
Stella Lucy Atieno Juma
Rongo University
Rongo, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
133
76
0.571
Ouma Ochola George
Rongo University
Rongo, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
68
67
0.985
Nick Waswa Namunga
Rongo University
Rongo, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
94
62
0.660
Curriculum studies
Education Management and research in education
Edward Odhiambo
Rongo University
Rongo, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
98
61
0.622
molecular biology
Biotechnology
Biochemistry
Genetics and Bioinformatics
Elisha Omoso
Rongo University
Rongo, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
56
52
0.929
Teacher Professional Development
Curriculum and Instructional Design
and Integrating Technology in Teaching
Gaster Nyangweso
Rongo University
Rongo, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
90
49
0.544
Peter Oyier Ogweno
Rongo University
Rongo, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
69
46
0.667
Agricultural Education
Teaching Methods
Curricula Studies
Agricultural Extension
Amuomo N
Rongo University
Rongo, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
46
46
1.000
Artificial Intelligence
Databases
Health Informatics
Telemedicine and eHealth
Ojala Daphen Otieno
Rongo University
Rongo, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
56
43
0.768
Wilson Ap Otengah
Rongo University
Rongo, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
55
43
0.782
Gerontology
Research
Sociology of Marriage and Family
Rural and Community Development
Wagude Janet
Rongo University
Rongo, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
47
37
0.787
Jared Ongong'A
Rongo University
Rongo, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
69
36
0.522
Ernest Odada
Rongo University
Rongo, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
129
34
0.264
Damaris Nyakoe
Rongo University
Rongo, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
57
34
0.596