Total 2,403,032 scientists, country 221, and institutions 24,466 are evaluated in the Productivity Rankings, an exclusive service provided by AD Scientific Index. This ranking measures and highlights the scientific productivity of researchers based on the i10 index (number of publications with at least 10 citations). This system identifies highly productive scientists across disciplines, institutions, and regions, contributing to the development of evidence-based academic policies and effective incentive mechanisms. The rankings include global, regional, and institutional analyses, along with specialized rankings such as Scientists' Last 6 Years' i10 Index and Universities' i10 Index Rankings 2025. With Premium Membership, you can:
- Gain full access to detailed comparisons and advanced analytics,
- Objectively evaluate your academic productivity,
- Make strategic, data-driven decisions to enhance performance.
* Total i10 IndexRankings
Ranking Based On Selection: 1
![Say Sok](/user/assets/images/profile/no-profile-photo.png)
Public Policy
NRM and Governance
(Higher) Education
Population Health
Media and Communication
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
19
17
0.895
* Total i10 IndexRankings
Ranking Based On Selection: 2
![Chan Oeurn Chey](https://cdn.adscientificindex.com/pictures/fb/358289.jpg)
Energy harvesting
Synthesis of Undoped and TM-doped Metal Oxides
Characterization and Their Applications
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
17
10
0.588
* Total i10 IndexRankings
Ranking Based On Selection: 3
![Mak Sithirith](https://cdn.adscientificindex.com/pictures/d6/6089697.jpg)
Water
Fisheries
Mekong and Tonle Sap
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
16
9
0.563
* Total i10 IndexRankings
Ranking Based On Selection: 4
![Sok Serey](https://cdn.adscientificindex.com/pictures/13/6098647.jpg)
Development
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
12
10
0.833
* Total i10 IndexRankings
Ranking Based On Selection: 5
![Veasna Soum](https://cdn.adscientificindex.com/pictures/ca/4314690.jpg)
Printing Electronics
Lab on a Chip
Microfluidics
Sensors
Microfabrication
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
10
10
1.000
* Total i10 IndexRankings
Ranking Based On Selection: 6
![Leang Un](https://cdn.adscientificindex.com/pictures/38/6088924.jpg)
social science
education
philosophy
development
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
10
9
0.900
* Total i10 IndexRankings
Ranking Based On Selection: 7
![Chan Narith Keuk](https://cdn.adscientificindex.com/pictures/cd/4314691.jpg)
Teacher Research
Blended Learning
ELT education
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
9
4
0.444
* Total i10 IndexRankings
Ranking Based On Selection: 8
![Saveng Ith](https://cdn.adscientificindex.com/pictures/46/4314689.jpg)
Taxonomy
Biodiversity
Ecology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
9
3
0.333
* Total i10 IndexRankings
Ranking Based On Selection: 9
![Sophany Phauk](https://cdn.adscientificindex.com/pictures/60/4314692.jpg)
Conservation Biology
Insect Ecology
Insect-microbe interactions
Taxonomy
Bioinformatics
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
8
7
0.875
* Total i10 IndexRankings
Ranking Based On Selection: 10
![Hun Seiha](https://cdn.adscientificindex.com/pictures/5f/5856132.jpg)
Ecology
Evolutionary
Amphibian
Reptile
Herpetology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
8
3
0.375
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* Total i10 IndexRankings
Ranking Based On Selection: 11
![SA Math](https://cdn.adscientificindex.com/pictures/39/4754701.jpg)
Mobile Computing/Networking
Machine Learning
Bigdata traffic engineering
Artificial Internet of Things
Data Science
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
7
7
1.000
* Total i10 IndexRankings
Ranking Based On Selection: 12
![Hangsak Huy](/user/assets/images/profile/no-profile-photo.png)
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
7
6
0.857
* Total i10 IndexRankings
Ranking Based On Selection: 13
![Tieng Siteng](https://cdn.adscientificindex.com/pictures/22/4314687.jpg)
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
7
4
0.571
* Total i10 IndexRankings
Ranking Based On Selection: 14
![Vibol San](https://cdn.adscientificindex.com/pictures/c9/6100546.jpg)
Environment and Energy
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
6
6
1.000
* Total i10 IndexRankings
Ranking Based On Selection: 15
![Bunthoeun Nim](https://cdn.adscientificindex.com/pictures/b2/5856143.jpg)
Chemical recycling of polylactide and other plastics
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
6
6
1.000
* Total i10 IndexRankings
Ranking Based On Selection: 16
![Sou Veasna](https://cdn.adscientificindex.com/pictures/d8/402578.jpg)
HRM and Tourism Management
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
6
5
0.833
* Total i10 IndexRankings
Ranking Based On Selection: 17
![David Ford](https://cdn.adscientificindex.com/pictures/9a/4314688.jpg)
International education
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
6
4
0.667
* Total i10 IndexRankings
Ranking Based On Selection: 18
![Sereilakhena Phal](https://cdn.adscientificindex.com/pictures/a4/5856138.jpg)
Electrochemical sensor
Colorimetric sensor
and Sample preparation
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
5
5
1.000
* Total i10 IndexRankings
Ranking Based On Selection: 19
![Davut Nhem](https://cdn.adscientificindex.com/pictures/79/4754700.jpg)
Teaching-research nexus
shadow education (private tutoring)
international & comparative education
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
5
5
1.000
* Total i10 IndexRankings
Ranking Based On Selection: 20
![Sao Vibol](https://cdn.adscientificindex.com/pictures/9e/6097266.jpg)
Environmental Chemistry and Health
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
5
4
0.800
* Total i10 IndexRankings
Ranking Based On Selection: 21
![Sopheak Chann](https://cdn.adscientificindex.com/pictures/5d/5856133.jpg)
Geography
Political Ecology
Critical Development Studies
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
5
4
0.800
* Total i10 IndexRankings
Ranking Based On Selection: 22
![Chou Phanith](https://cdn.adscientificindex.com/pictures/49/4754696.jpg)
Environmental Economics
Ecosystem Services
Biodiversity Conservation
Social Development
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
5
4
0.800
* Total i10 IndexRankings
Ranking Based On Selection: 23
![Nil Ean](/user/assets/images/profile/no-profile-photo.png)
Psychological trauma
addiction
and other trauma related disorders.
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
5
3
0.600
* Total i10 IndexRankings
Ranking Based On Selection: 24
![Nel Nun](https://cdn.adscientificindex.com/pictures/c7/5856146.jpg)
Education and English teaching
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
4
4
1.000
* Total i10 IndexRankings
Ranking Based On Selection: 25
![Tak Kean](https://cdn.adscientificindex.com/pictures/52/6099565.jpg)
Digital Technology
Digital Transformation
Higher Education Institutions
IT
ICT
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
4
4
1.000
Say Sok
Royal University of Phnom Penh
Phnom Penh, Cambodia
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
19
17
0.895
Public Policy
NRM and Governance
(Higher) Education
Population Health
Media and Communication
Chan Oeurn Chey
Royal University of Phnom Penh
Phnom Penh, Cambodia
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
17
10
0.588
Energy harvesting
Synthesis of Undoped and TM-doped Metal Oxides
Characterization and Their Applications
Mak Sithirith
Royal University of Phnom Penh
Phnom Penh, Cambodia
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
16
9
0.563
Water
Fisheries
Mekong and Tonle Sap
Sok Serey
Royal University of Phnom Penh
Phnom Penh, Cambodia
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
12
10
0.833
Veasna Soum
Royal University of Phnom Penh
Phnom Penh, Cambodia
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
10
10
1.000
Printing Electronics
Lab on a Chip
Microfluidics
Sensors
Microfabrication
Leang Un
Royal University of Phnom Penh
Phnom Penh, Cambodia
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
10
9
0.900
Chan Narith Keuk
Royal University of Phnom Penh
Phnom Penh, Cambodia
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
9
4
0.444
Teacher Research
Blended Learning
ELT education
Saveng Ith
Royal University of Phnom Penh
Phnom Penh, Cambodia
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
9
3
0.333
Sophany Phauk
Royal University of Phnom Penh
Phnom Penh, Cambodia
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
8
7
0.875
Conservation Biology
Insect Ecology
Insect-microbe interactions
Taxonomy
Bioinformatics
Hun Seiha
Royal University of Phnom Penh
Phnom Penh, Cambodia
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
8
3
0.375
Ecology
Evolutionary
Amphibian
Reptile
Herpetology
Enroll all your faculty members with discounted institutional membership to showcase your institution's academic strength to the world in the best way possible – join now and achieve results fast!
SA Math
Royal University of Phnom Penh
Phnom Penh, Cambodia
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
7
7
1.000
Mobile Computing/Networking
Machine Learning
Bigdata traffic engineering
Artificial Internet of Things
Data Science
Hangsak Huy
Royal University of Phnom Penh
Phnom Penh, Cambodia
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
7
6
0.857
Tieng Siteng
Royal University of Phnom Penh
Phnom Penh, Cambodia
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
7
4
0.571
Vibol San
Royal University of Phnom Penh
Phnom Penh, Cambodia
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
6
6
1.000
Bunthoeun Nim
Royal University of Phnom Penh
Phnom Penh, Cambodia
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
6
6
1.000
Sou Veasna
Royal University of Phnom Penh
Phnom Penh, Cambodia
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
6
5
0.833
HRM and Tourism Management
David Ford
Royal University of Phnom Penh
Phnom Penh, Cambodia
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
6
4
0.667
Sereilakhena Phal
Royal University of Phnom Penh
Phnom Penh, Cambodia
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
5
5
1.000
Electrochemical sensor
Colorimetric sensor
and Sample preparation
Davut Nhem
Royal University of Phnom Penh
Phnom Penh, Cambodia
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
5
5
1.000
Teaching-research nexus
shadow education (private tutoring)
international & comparative education
Sao Vibol
Royal University of Phnom Penh
Phnom Penh, Cambodia
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
5
4
0.800
Sopheak Chann
Royal University of Phnom Penh
Phnom Penh, Cambodia
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
5
4
0.800
Chou Phanith
Royal University of Phnom Penh
Phnom Penh, Cambodia
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
5
4
0.800
Environmental Economics
Ecosystem Services
Biodiversity Conservation
Social Development
Nil Ean
Royal University of Phnom Penh
Phnom Penh, Cambodia
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
5
3
0.600
Psychological trauma
addiction
and other trauma related disorders.
Nel Nun
Royal University of Phnom Penh
Phnom Penh, Cambodia
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
4
4
1.000
Tak Kean
Royal University of Phnom Penh
Phnom Penh, Cambodia
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
4
4
1.000
Digital Technology
Digital Transformation
Higher Education Institutions
IT
ICT