Citation Rankings
Highly Cited Researchers
Open University of Tanzania Highly Cited Researchers Citation Rankings (Sort by last 6 years Citation Index) 2025
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
Environmental Analysis
Natural pesticides
Instrumentation
Environmental Chemistry
Ethnobotany
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
925
496
0.536
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :2
aquaculture and microbiology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
472
413
0.875
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :3
Special and Inclusive Education
Digital Inclusion
Distance Education
Disability
Action Research
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
381
265
0.696
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :4
conservation sciences
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
397
258
0.650
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :5
Life sciences
Public health
Environmental Health
Malaria Entomology
Malaria Epidemiology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
301
245
0.814
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :6
Plant Pathology
Integrated Pest Management
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
489
226
0.462
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :7
ICT
Wireless Networks
IoT
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
231
215
0.931
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :8
Data privacy
electronic communications and internet governance
e-commerce
cybersecurity
intellectual property in the digital
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
319
204
0.639
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :9
Chemistry
Environmental Chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
259
200
0.772
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :10
Marketing
Agribusiness
Finance
Microfinance
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
320
194
0.606
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :11
Adult & tertiary education
prison education
lifelong learning
distance education
educational leadership
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
194
186
0.959
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :12
Wildlife Biodiversity
Tourism & Climate Change
Water for the Environment
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
248
179
0.722
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :13
Agricultural Economics
Agribusiness
Development Economics
Environmental and Natural Economics
Project M&E
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
211
171
0.810
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :14
Market orientation
entrepreneurial orientation
SME
tourism
service marketing
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
402
140
0.348
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :15
Entrepreneurship
International Marketing
Strategic Management
Innovation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
133
133
1.000
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :16
Finance
Accoounting
Entrepreneurship and Management
Financial System/Development
Economic Growth
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
129
113
0.876
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :17
Geography
Environment and Natural Resources
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
110
101
0.918
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :18
e-learning
m-learning
data science and security
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
108
96
0.889
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :19
Research methods
curriculum theory and practice
teacher education
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
119
85
0.714
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :20
Teacher Education
Teacher Educators
History Education
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
85
74
0.871
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :21
Education
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
64
61
0.953
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :22
Water Sanitation and Hygiene
Faecal sludge management
Water quality
Wastewater treatment
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
72
57
0.792
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :23
Astronomy
Astrotourism
Environmental Physics
Science Education
Kiswahili Science terminologies
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
85
47
0.553
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :24
E-Learning
Programming
Semantic Web
Machine Learning Algorithms
Data Science
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
77
46
0.597
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :25
finance
organizational psychology and behaviour
organizational performance
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
74
39
0.527
* Last 6 Years Citation Counts Rankings
Rankings
712,664
297
1
Ranking Based On Selection: 1
Matobola Joel Mihale
Open University of Tanzania
Dar es Salaam, Tanzania
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
925
496
0.536
Environmental Analysis
Natural pesticides
Instrumentation
Environmental Chemistry
Ethnobotany
* Last 6 Years Citation Counts Rankings
Rankings
785,325
354
2
Ranking Based On Selection: 2
Esther Marijani
Open University of Tanzania
Dar es Salaam, Tanzania
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
472
413
0.875
* Last 6 Years Citation Counts Rankings
Rankings
976,652
578
3
Ranking Based On Selection: 3
Cosmas Mnyanyi
Open University of Tanzania
Dar es Salaam, Tanzania
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
381
265
0.696
Special and Inclusive Education
Digital Inclusion
Distance Education
Disability
Action Research
* Last 6 Years Citation Counts Rankings
Rankings
988,468
588
4
Ranking Based On Selection: 4
Paulo Wilfred
Open University of Tanzania
Dar es Salaam, Tanzania
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
397
258
0.650
* Last 6 Years Citation Counts Rankings
Rankings
1,012,102
627
5
Ranking Based On Selection: 5
Emmanuel Kigadye
Open University of Tanzania
Dar es Salaam, Tanzania
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
301
245
0.814
Life sciences
Public health
Environmental Health
Malaria Entomology
Malaria Epidemiology
* Last 6 Years Citation Counts Rankings
Rankings
1,048,316
670
6
Ranking Based On Selection: 6
Said MS Massomo
Open University of Tanzania
Dar es Salaam, Tanzania
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
489
226
0.462
Plant Pathology
Integrated Pest Management
* Last 6 Years Citation Counts Rankings
Rankings
1,071,968
702
7
Ranking Based On Selection: 7
Lilian C. Mutalemwa
Open University of Tanzania
Dar es Salaam, Tanzania
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
231
215
0.931
ICT
Wireless Networks
IoT
* Last 6 Years Citation Counts Rankings
Rankings
1,095,341
729
8
Ranking Based On Selection: 8
Alex B. Makulilo
Open University of Tanzania
Dar es Salaam, Tanzania
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
319
204
0.639
Data privacy
electronic communications and internet governance
e-commerce
cybersecurity
intellectual property in the digital
* Last 6 Years Citation Counts Rankings
Rankings
1,104,652
743
9
Ranking Based On Selection: 9
Josephat Saria
Open University of Tanzania
Dar es Salaam, Tanzania
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
259
200
0.772
Chemistry
Environmental Chemistry
* Last 6 Years Citation Counts Rankings
Rankings
1,118,245
757
10
Ranking Based On Selection: 10
Joseph Magali
Open University of Tanzania
Dar es Salaam, Tanzania
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
320
194
0.606
Marketing
Agribusiness
Finance
Microfinance
* Last 6 Years Citation Counts Rankings
Rankings
1,138,791
790
11
Ranking Based On Selection: 11
Mohamed Salum Msoroka
Open University of Tanzania
Dar es Salaam, Tanzania
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
194
186
0.959
Adult & tertiary education
prison education
lifelong learning
distance education
educational leadership
* Last 6 Years Citation Counts Rankings
Rankings
1,155,569
811
12
Ranking Based On Selection: 12
Kilungu, H.
Open University of Tanzania
Dar es Salaam, Tanzania
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
248
179
0.722
Wildlife Biodiversity
Tourism & Climate Change
Water for the Environment
* Last 6 Years Citation Counts Rankings
Rankings
1,177,044
833
13
Ranking Based On Selection: 13
Deus ngaruko
Open University of Tanzania
Dar es Salaam, Tanzania
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
211
171
0.810
Agricultural Economics
Agribusiness
Development Economics
Environmental and Natural Economics
Project M&E
* Last 6 Years Citation Counts Rankings
Rankings
1,268,724
957
14
Ranking Based On Selection: 14
Jan-Erik Jaensson
Open University of Tanzania
Dar es Salaam, Tanzania
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
402
140
0.348
Market orientation
entrepreneurial orientation
SME
tourism
service marketing
* Last 6 Years Citation Counts Rankings
Rankings
1,295,224
993
15
Ranking Based On Selection: 15
France A. Shayo
Open University of Tanzania
Dar es Salaam, Tanzania
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
133
133
1.000
Entrepreneurship
International Marketing
Strategic Management
Innovation
* Last 6 Years Citation Counts Rankings
Rankings
1,368,513
1,098
16
Ranking Based On Selection: 16
Saganga Kapaya
Open University of Tanzania
Dar es Salaam, Tanzania
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
129
113
0.876
Finance
Accoounting
Entrepreneurship and Management
Financial System/Development
Economic Growth
* Last 6 Years Citation Counts Rankings
Rankings
1,419,251
1,172
17
Ranking Based On Selection: 17
Emmanuel Patroba Mhache
Open University of Tanzania
Dar es Salaam, Tanzania
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
110
101
0.918
* Last 6 Years Citation Counts Rankings
Rankings
1,441,439
1,214
18
Ranking Based On Selection: 18
Juliana Kamaghe
Open University of Tanzania
Dar es Salaam, Tanzania
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
108
96
0.889
* Last 6 Years Citation Counts Rankings
Rankings
1,493,568
1,300
19
Ranking Based On Selection: 19
Evaristo Mtitu
Open University of Tanzania
Dar es Salaam, Tanzania
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
119
85
0.714
Research methods
curriculum theory and practice
teacher education
* Last 6 Years Citation Counts Rankings
Rankings
1,553,166
1,399
20
Ranking Based On Selection: 20
Adam Namamba
Open University of Tanzania
Dar es Salaam, Tanzania
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
85
74
0.871
Teacher Education
Teacher Educators
History Education
* Last 6 Years Citation Counts Rankings
Rankings
1,631,613
1,536
21
Ranking Based On Selection: 21
Janeth Kigobe
Open University of Tanzania
Dar es Salaam, Tanzania
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
64
61
0.953
* Last 6 Years Citation Counts Rankings
Rankings
1,656,846
1,586
22
Ranking Based On Selection: 22
Isabela Thomas Mkude
Open University of Tanzania
Dar es Salaam, Tanzania
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
72
57
0.792
Water Sanitation and Hygiene
Faecal sludge management
Water quality
Wastewater treatment
* Last 6 Years Citation Counts Rankings
Rankings
1,726,648
1,717
23
Ranking Based On Selection: 23
Noorali Jiwaji
Open University of Tanzania
Dar es Salaam, Tanzania
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
85
47
0.553
Astronomy
Astrotourism
Environmental Physics
Science Education
Kiswahili Science terminologies
* Last 6 Years Citation Counts Rankings
Rankings
1,734,534
1,736
24
Ranking Based On Selection: 24
Rogers Phillip Bhalalusesa
Open University of Tanzania
Dar es Salaam, Tanzania
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
77
46
0.597
E-Learning
Programming
Semantic Web
Machine Learning Algorithms
Data Science
* Last 6 Years Citation Counts Rankings
Rankings
1,791,065
1,862
25
Ranking Based On Selection: 25
Proches Ngatuni
Open University of Tanzania
Dar es Salaam, Tanzania
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
74
39
0.527
finance
organizational psychology and behaviour
organizational performance