Citation Rankings
Highly Cited Researchers
Highly Cited Researchers 62 Scientists Citation 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
HRM and Tourism Management
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
958
574
0.599
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* Total Citation Counts Rankings
Ranking Based On Selection: 2
Energy harvesting
Synthesis of Undoped and TM-doped Metal Oxides
Characterization and Their Applications
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
720
345
0.479
* Total Citation Counts Rankings
Ranking Based On Selection: 3
Water
Fisheries
Mekong and Tonle Sap
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
515
269
0.522
* Total Citation Counts Rankings
Ranking Based On Selection: 4
Public Policy
NRM and Governance
(Higher) Education
Population Health
Media and Communication
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
502
428
0.853
* Total Citation Counts Rankings
Ranking Based On Selection: 5
Printing Electronics
Lab on a Chip
Microfluidics
Sensors
Microfabrication
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
441
392
0.889
* Total Citation Counts Rankings
Ranking Based On Selection: 6
Environmental Chemistry and Health
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
408
181
0.444
* Total Citation Counts Rankings
Ranking Based On Selection: 7
Development
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
349
277
0.794
* Total Citation Counts Rankings
Ranking Based On Selection: 8
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
344
124
0.360
* Total Citation Counts Rankings
Ranking Based On Selection: 9
social science
education
philosophy
development
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
335
266
0.794
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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
Environment and Energy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
316
131
0.415
* Total Citation Counts Rankings
Ranking Based On Selection: 11
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
282
203
0.720
* Total Citation Counts Rankings
Ranking Based On Selection: 12
International education
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
267
81
0.303
* Total Citation Counts Rankings
Ranking Based On Selection: 13
Taxonomy
Biodiversity
Ecology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
231
99
0.429
* Total Citation Counts Rankings
Ranking Based On Selection: 14
Mobile Computing/Networking
Machine Learning
Bigdata traffic engineering
Artificial Internet of Things
Data Science
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
285
262
0.919
* Total Citation Counts Rankings
Ranking Based On Selection: 15
Conservation Biology
Insect Ecology
Insect-microbe interactions
Taxonomy
Bioinformatics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
207
141
0.681
* Total Citation Counts Rankings
Ranking Based On Selection: 16
Teacher Research
Blended Learning
ELT education
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
194
109
0.562
* Total Citation Counts Rankings
Ranking Based On Selection: 17
Land use land cover
water management
environmental economics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
187
136
0.727
* Total Citation Counts Rankings
Ranking Based On Selection: 18
Geography
Political Ecology
Critical Development Studies
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
173
133
0.769
* Total Citation Counts Rankings
Ranking Based On Selection: 19
Ecology
Evolutionary
Amphibian
Reptile
Herpetology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
177
120
0.678
* Total Citation Counts Rankings
Ranking Based On Selection: 20
Environmental Economics
Ecosystem Services
Biodiversity Conservation
Social Development
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
166
141
0.849
* Total Citation Counts Rankings
Ranking Based On Selection: 21
Optical Spectroscopy
Raman Spectroscopy
2D Materials
Nanotechnology
Microbeam Analysis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
161
120
0.745
* Total Citation Counts Rankings
Ranking Based On Selection: 22
Microwave Engineering
Frequency monitoring & QoS
Medical instrumentation
Biosignal processing and analysis
Physiological mon
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
141
86
0.610
* Total Citation Counts Rankings
Ranking Based On Selection: 23
Psychological trauma
addiction
and other trauma related disorders.
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
134
104
0.776
* Total Citation Counts Rankings
Ranking Based On Selection: 24
Chemical recycling of polylactide and other plastics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
130
129
0.992
* Total Citation Counts Rankings
Ranking Based On Selection: 25
Electrochemical sensor
Colorimetric sensor
and Sample preparation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
120
106
0.883
* Total Citation Counts Rankings
Rankings
705,953
21
1
Ranking Based On Selection: 1
Sou Veasna
Royal University of Phnom Penh
Phnom Penh, Cambodia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
958
574
0.599
HRM and Tourism Management
* Total Citation Counts Rankings
Rankings
812,012
27
2
Ranking Based On Selection: 2
Chan Oeurn Chey
Royal University of Phnom Penh
Phnom Penh, Cambodia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
720
345
0.479
Energy harvesting
Synthesis of Undoped and TM-doped Metal Oxides
Characterization and Their Applications
* Total Citation Counts Rankings
Rankings
922,600
35
3
Ranking Based On Selection: 3
Mak Sithirith
Royal University of Phnom Penh
Phnom Penh, Cambodia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
515
269
0.522
Water
Fisheries
Mekong and Tonle Sap
* Total Citation Counts Rankings
Rankings
956,829
38
4
Ranking Based On Selection: 4
Say Sok
Royal University of Phnom Penh
Phnom Penh, Cambodia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
502
428
0.853
Public Policy
NRM and Governance
(Higher) Education
Population Health
Media and Communication
* Total Citation Counts Rankings
Rankings
988,482
41
5
Ranking Based On Selection: 5
Veasna Soum
Royal University of Phnom Penh
Phnom Penh, Cambodia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
441
392
0.889
Printing Electronics
Lab on a Chip
Microfluidics
Sensors
Microfabrication
* Total Citation Counts Rankings
Rankings
1,019,260
44
6
Ranking Based On Selection: 6
Sao Vibol
Royal University of Phnom Penh
Phnom Penh, Cambodia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
408
181
0.444
* Total Citation Counts Rankings
Rankings
1,082,769
49
7
Ranking Based On Selection: 7
Sok Serey
Royal University of Phnom Penh
Phnom Penh, Cambodia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
349
277
0.794
* Total Citation Counts Rankings
Rankings
1,084,567
50
8
Ranking Based On Selection: 8
Tieng Siteng
Royal University of Phnom Penh
Phnom Penh, Cambodia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
344
124
0.360
* Total Citation Counts Rankings
Rankings
1,105,012
51
9
Ranking Based On Selection: 9
Leang Un
Royal University of Phnom Penh
Phnom Penh, Cambodia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
335
266
0.794
* Total Citation Counts Rankings
Rankings
1,125,205
54
10
Ranking Based On Selection: 10
Vibol San
Royal University of Phnom Penh
Phnom Penh, Cambodia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
316
131
0.415
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
1,173,822
57
11
Ranking Based On Selection: 11
Hangsak Huy
Royal University of Phnom Penh
Phnom Penh, Cambodia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
282
203
0.720
* Total Citation Counts Rankings
Rankings
1,208,209
60
12
Ranking Based On Selection: 12
David Ford
Royal University of Phnom Penh
Phnom Penh, Cambodia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
267
81
0.303
* Total Citation Counts Rankings
Rankings
1,263,725
66
13
Ranking Based On Selection: 13
Saveng Ith
Royal University of Phnom Penh
Phnom Penh, Cambodia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
231
99
0.429
* Total Citation Counts Rankings
Rankings
1,281,923
69
14
Ranking Based On Selection: 14
SA Math
Royal University of Phnom Penh
Phnom Penh, Cambodia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
285
262
0.919
Mobile Computing/Networking
Machine Learning
Bigdata traffic engineering
Artificial Internet of Things
Data Science
* Total Citation Counts Rankings
Rankings
1,305,766
71
15
Ranking Based On Selection: 15
Sophany Phauk
Royal University of Phnom Penh
Phnom Penh, Cambodia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
207
141
0.681
Conservation Biology
Insect Ecology
Insect-microbe interactions
Taxonomy
Bioinformatics
* Total Citation Counts Rankings
Rankings
1,321,557
73
16
Ranking Based On Selection: 16
Chan Narith Keuk
Royal University of Phnom Penh
Phnom Penh, Cambodia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
194
109
0.562
Teacher Research
Blended Learning
ELT education
* Total Citation Counts Rankings
Rankings
1,357,191
75
17
Ranking Based On Selection: 17
Chhinh Nyda
Royal University of Phnom Penh
Phnom Penh, Cambodia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
187
136
0.727
Land use land cover
water management
environmental economics
* Total Citation Counts Rankings
Rankings
1,359,519
76
18
Ranking Based On Selection: 18
Sopheak Chann
Royal University of Phnom Penh
Phnom Penh, Cambodia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
173
133
0.769
* Total Citation Counts Rankings
Rankings
1,396,500
80
19
Ranking Based On Selection: 19
Hun Seiha
Royal University of Phnom Penh
Phnom Penh, Cambodia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
177
120
0.678
Ecology
Evolutionary
Amphibian
Reptile
Herpetology
* Total Citation Counts Rankings
Rankings
1,418,370
82
20
Ranking Based On Selection: 20
Chou Phanith
Royal University of Phnom Penh
Phnom Penh, Cambodia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
166
141
0.849
Environmental Economics
Ecosystem Services
Biodiversity Conservation
Social Development
* Total Citation Counts Rankings
Rankings
1,433,083
86
21
Ranking Based On Selection: 21
Tharith Sriv
Royal University of Phnom Penh
Phnom Penh, Cambodia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
161
120
0.745
Optical Spectroscopy
Raman Spectroscopy
2D Materials
Nanotechnology
Microbeam Analysis
* Total Citation Counts Rankings
Rankings
1,470,359
89
22
Ranking Based On Selection: 22
Tharoeun Thap
Royal University of Phnom Penh
Phnom Penh, Cambodia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
141
86
0.610
Microwave Engineering
Frequency monitoring & QoS
Medical instrumentation
Biosignal processing and analysis
Physiological mon
* Total Citation Counts Rankings
Rankings
1,513,312
94
23
Ranking Based On Selection: 23
Nil Ean
Royal University of Phnom Penh
Phnom Penh, Cambodia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
134
104
0.776
Psychological trauma
addiction
and other trauma related disorders.
* Total Citation Counts Rankings
Rankings
1,551,318
100
24
Ranking Based On Selection: 24
Bunthoeun Nim
Royal University of Phnom Penh
Phnom Penh, Cambodia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
130
129
0.992
* Total Citation Counts Rankings
Rankings
1,559,710
105
25
Ranking Based On Selection: 25
Sereilakhena Phal
Royal University of Phnom Penh
Phnom Penh, Cambodia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
120
106
0.883
Electrochemical sensor
Colorimetric sensor
and Sample preparation
