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
Algae
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,698
1,190
0.701
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :2
Primary Health Care
Maternal and Child Health
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,140
989
0.868
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :3
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
947
494
0.522
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :4
Hypertension in pregnancy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
489
426
0.871
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :5
Artificial Intelligence
Machine Learning
Intelligent Decision Support Systems
Intelligent Systems
Software Engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
408
401
0.983
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :6
Real-Time Co-Simulation
Electric Vehicle
Energy Management
Microgrid
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
386
381
0.987
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :7
Managerial accounting
Financial Management
Corporate finance
Investment decisions
Financing of Small business and Financial
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
357
357
1.000
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :8
productivity improvement
sustainable design and buildings
construction delays
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
546
329
0.603
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :9
e-voting
social media
big data
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
404
321
0.795
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :10
Waste and renewable biomass valorisation
wastewater treatment
anaerobic digestion
airlift reactors
engineering education
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
329
317
0.964
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :11
Undergraduate Research-Teaching Nexus
Virtual Exchange
Educational Development
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
394
316
0.802
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :12
molecular biology and analytical chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
321
310
0.966
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :13
Digital preservation and curation
Record management
Information and Knowledge Management
Indigenous Knowledge
Disruptive Te
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
310
307
0.990
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :14
nursing education and midwifery practice
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
343
305
0.889
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :15
International Trade and Finance
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
317
273
0.861
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :16
International HRM
Knowledge Management
Talent Management
Human Resource Development
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
272
265
0.974
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :17
Structures and Construction Materials
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
275
259
0.942
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :18
Energy and waste water
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
348
258
0.741
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :19
Thermodynamics
Separation Techniques
Biosensors and Sensors
Nanotechnology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
258
258
1.000
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :20
Quantity Surveying
Dispute Resolution
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
239
236
0.987
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :21
Algal Biotechnology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
388
231
0.595
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :22
Nutrition
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
241
229
0.950
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :23
Algal biotechnology
Microbiology
Nanotechnology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
251
222
0.884
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :24
wastewater treatment
microbiology
microbial risk assessment
water quality
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
228
221
0.969
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :25
Teacher Education
School Leadership
Entrepreneurship Education
Teaching in Higher Education
Business Studies Education
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
233
207
0.888
Sachitra Kumar Ratha
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,698
1,190
0.701
Maureen Nokuthula Sibiya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,140
989
0.868
Carin Napier
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
947
494
0.522
Nalini Govender
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
489
426
0.871
Nalindren Naicker
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
408
401
0.983
Artificial Intelligence
Machine Learning
Intelligent Decision Support Systems
Intelligent Systems
Software Engineering
Elutunji Buraimoh
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
386
381
0.987
Real-Time Co-Simulation
Electric Vehicle
Energy Management
Microgrid
Thabiso Sthembiso Msomi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
357
357
1.000
Managerial accounting
Financial Management
Corporate finance
Investment decisions
Financing of Small business and Financial
Olatunji Ayodeji Aiyetan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
546
329
0.603
productivity improvement
sustainable design and buildings
construction delays
Surendra Thakur (Colin)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
404
321
0.795
Maggie Manimagalay Chetty
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
329
317
0.964
Waste and renewable biomass valorisation
wastewater treatment
anaerobic digestion
airlift reactors
engineering education
Anisa Vahed
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
394
316
0.802
Undergraduate Research-Teaching Nexus
Virtual Exchange
Educational Development
Kriveshin Pillay
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
321
310
0.966
Tlou Maggie Masenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
310
307
0.990
Digital preservation and curation
Record management
Information and Knowledge Management
Indigenous Knowledge
Disruptive Te
Thembelihle Ngxongo|Sylvia Patience
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
343
305
0.889
Gift Mugano
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
317
273
0.861
Pauline Ngo-Henha|Ngo-Henha
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
272
265
0.974
International HRM
Knowledge Management
Talent Management
Human Resource Development
Jacob Ikotun
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
275
259
0.942
Sammy Lewis Kiambi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
348
258
0.741
Bakusele Kabane
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
258
258
1.000
Thermodynamics
Separation Techniques
Biosensors and Sensors
Nanotechnology
Modupe Mewomo
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
239
236
0.987
Trisha Mogany
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
388
231
0.595
Ashika Naicker
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
241
229
0.950
Reeza Patnaik
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
251
222
0.884
Nashia Deepnarain
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
228
221
0.969
wastewater treatment
microbiology
microbial risk assessment
water quality
Kgomotlokoa Linda Thaba-Nkadimene
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
233
207
0.888
Teacher Education
School Leadership
Entrepreneurship Education
Teaching in Higher Education
Business Studies Education