Citation Rankings
Highly Cited Researchers
Highly Cited Researchers 488 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
Physics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,423
3,267
0.168
* Total Citation Counts Rankings
Ranking Based On Selection: 2
Total quality management
human resource management
knowledge management
mobile technology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,779
6,721
0.766
* Total Citation Counts Rankings
Ranking Based On Selection: 3
Medical Tourism
Service Marketing
Higher Education
Technology Management
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,827
7,426
0.949
* Total Citation Counts Rankings
Ranking Based On Selection: 4
technology adoption
social commerce and mobile technology application
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,316
5,937
0.812
* Total Citation Counts Rankings
Ranking Based On Selection: 5
Wastewater treatment
Air pollutant remediation
Waste Re-utilization
Adsorption
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,905
3,512
0.509
* Total Citation Counts Rankings
Ranking Based On Selection: 6
Nanocatalysis
Composite Materials
Heterogeneous Photocatalysis
Water and Wastewater Treatment Purification
Kinetic modeling
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,392
4,465
0.699
* Total Citation Counts Rankings
Ranking Based On Selection: 7
Environmental Nanocatalysis
Heterogeneous Photocatalysis
Advanced Oxidation Process
Water and Wastewater Treatment
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,308
4,380
0.694
* Total Citation Counts Rankings
Ranking Based On Selection: 8
Chemical Engineering
Environmental catalyst
Advanced materials
Wastewater treatment
Biomass
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,112
4,823
0.789
* Total Citation Counts Rankings
Ranking Based On Selection: 9
Neonatology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,056
2,310
0.381
* Total Citation Counts Rankings
Ranking Based On Selection: 10
Membrane Technology
Water Research
Polymer
Aquaculture Water Management
quantum dot
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,997
4,581
0.764
* Total Citation Counts Rankings
Ranking Based On Selection: 11
innovation management
mobile commerce
social commerce
privacy concerns
privacy paradox
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,650
5,030
0.890
* Total Citation Counts Rankings
Ranking Based On Selection: 12
Chemical Engineering
Biofuels
Biomass
Catalysis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,524
4,153
0.752
* Total Citation Counts Rankings
Ranking Based On Selection: 13
Renewable energy
thermal management
Li-ion battery
electric vehicle
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,185
3,980
0.768
* Total Citation Counts Rankings
Ranking Based On Selection: 14
Plant biotechnology
molecular biology
synthetic biology
plant-microbe interaction
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,964
1,559
0.314
* Total Citation Counts Rankings
Ranking Based On Selection: 15
Polymer Science
Nanocomposites
Biodegradable Polymers
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,887
2,810
0.575
* Total Citation Counts Rankings
Ranking Based On Selection: 16
Renewable Energy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,634
1,261
0.272
* Total Citation Counts Rankings
Ranking Based On Selection: 17
Hydrology
Water Resources Engineering
Climate Change Study
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,578
4,088
0.893
* Total Citation Counts Rankings
Ranking Based On Selection: 18
Financial development
Banking System
Foreign direct investment
Economic development
China's Belt and Road Initiative
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,538
2,325
0.512
* Total Citation Counts Rankings
Ranking Based On Selection: 19
Clinical Microbiology
Infection Control
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,328
1,136
0.262
* Total Citation Counts Rankings
Ranking Based On Selection: 20
Clinical Microbiology
Infection Control
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,292
1,132
0.264
* Total Citation Counts Rankings
Ranking Based On Selection: 21
Meditation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,180
2,902
0.694
* Total Citation Counts Rankings
Ranking Based On Selection: 22
Mycology
Plant Pathology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,688
1,176
0.319
* Total Citation Counts Rankings
Ranking Based On Selection: 23
Biomass valorization
Environmental Science
Vermicomposting
Waste management
Waste treatment
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,500
2,687
0.768
* Total Citation Counts Rankings
Ranking Based On Selection: 24
Hematology
stem cells
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,370
1,285
0.381
* Total Citation Counts Rankings
Ranking Based On Selection: 25
Polymer composites
flame retardant
electron beam irradiation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,282
2,030
0.619
* Total Citation Counts Rankings
Rankings
43,143
80
1
Ranking Based On Selection: 1
Kong Yew Chin
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,423
3,267
0.168
* Total Citation Counts Rankings
Rankings
116,612
350
2
Ranking Based On Selection: 2
Lee Voon Hsien
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,779
6,721
0.766
Total quality management
human resource management
knowledge management
mobile technology
* Total Citation Counts Rankings
Rankings
132,407
423
3
Ranking Based On Selection: 3
Cham Tat Huei|Tat Huei Cham, Huei Cham Tat, Huei Tat Cham
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,827
7,426
0.949
Medical Tourism
Service Marketing
Higher Education
Technology Management
* Total Citation Counts Rankings
Rankings
142,412
477
4
Ranking Based On Selection: 4
Leong Lai Ying
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,316
5,937
0.812
technology adoption
social commerce and mobile technology application
* Total Citation Counts Rankings
Rankings
151,326
521
5
Ranking Based On Selection: 5
Sumathi Sethupathi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,905
3,512
0.509
Wastewater treatment
Air pollutant remediation
Waste Re-utilization
Adsorption
* Total Citation Counts Rankings
Rankings
163,937
593
6
Ranking Based On Selection: 6
Sze Mun Lam
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,392
4,465
0.699
Nanocatalysis
Composite Materials
Heterogeneous Photocatalysis
Water and Wastewater Treatment Purification
Kinetic modeling
* Total Citation Counts Rankings
Rankings
166,157
607
7
Ranking Based On Selection: 7
Jin Chung Sin
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,308
4,380
0.694
Environmental Nanocatalysis
Heterogeneous Photocatalysis
Advanced Oxidation Process
Water and Wastewater Treatment
* Total Citation Counts Rankings
Rankings
171,460
631
8
Ranking Based On Selection: 8
Yean Ling Pang
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,112
4,823
0.789
Chemical Engineering
Environmental catalyst
Advanced materials
Wastewater treatment
Biomass
* Total Citation Counts Rankings
Rankings
173,086
644
9
Ranking Based On Selection: 9
Nem Yun Boo
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,056
2,310
0.381
* Total Citation Counts Rankings
Rankings
174,735
650
10
Ranking Based On Selection: 10
NG Law Yong
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,997
4,581
0.764
Membrane Technology
Water Research
Polymer
Aquaculture Water Management
quantum dot
* Total Citation Counts Rankings
Rankings
185,452
709
11
Ranking Based On Selection: 11
Jun Jie Hew
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,650
5,030
0.890
innovation management
mobile commerce
social commerce
privacy concerns
privacy paradox
* Total Citation Counts Rankings
Rankings
189,493
735
12
Ranking Based On Selection: 12
Steven Lim
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,524
4,153
0.752
Chemical Engineering
Biofuels
Biomass
Catalysis
* Total Citation Counts Rankings
Rankings
201,649
803
13
Ranking Based On Selection: 13
Bernard Saw Lh
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,185
3,980
0.768
Renewable energy
thermal management
Li-ion battery
electric vehicle
* Total Citation Counts Rankings
Rankings
210,372
856
14
Ranking Based On Selection: 14
Hann Ling Wong
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,964
1,559
0.314
Plant biotechnology
molecular biology
synthetic biology
plant-microbe interaction
* Total Citation Counts Rankings
Rankings
213,504
873
15
Ranking Based On Selection: 15
Lee Tin Sin
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,887
2,810
0.575
Polymer Science
Nanocomposites
Biodegradable Polymers
* Total Citation Counts Rankings
Rankings
224,481
951
16
Ranking Based On Selection: 16
Tan Kok Tat
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,634
1,261
0.272
* Total Citation Counts Rankings
Rankings
226,980
964
17
Ranking Based On Selection: 17
Yuk Feng Huang
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,578
4,088
0.893
Hydrology
Water Resources Engineering
Climate Change Study
* Total Citation Counts Rankings
Rankings
228,923
977
18
Ranking Based On Selection: 18
Chee Keong Choong
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,538
2,325
0.512
Financial development
Banking System
Foreign direct investment
Economic development
China's Belt and Road Initiative
* Total Citation Counts Rankings
Rankings
239,250
1,030
19
Ranking Based On Selection: 19
Yun Fong Ngeow
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,328
1,136
0.262
Clinical Microbiology
Infection Control
* Total Citation Counts Rankings
Rankings
241,083
1,045
20
Ranking Based On Selection: 20
Yun Ngeow
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,292
1,132
0.264
Clinical Microbiology
Infection Control
* Total Citation Counts Rankings
Rankings
246,993
1,078
21
Ranking Based On Selection: 21
Yun Seng Lim
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,180
2,902
0.694
* Total Citation Counts Rankings
Rankings
275,973
1,273
22
Ranking Based On Selection: 22
Teik Khiang Goh (吳德強博士)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,688
1,176
0.319
* Total Citation Counts Rankings
Rankings
288,699
1,385
23
Ranking Based On Selection: 23
Katrina Shak Pui Yee
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,500
2,687
0.768
Biomass valorization
Environmental Science
Vermicomposting
Waste management
Waste treatment
* Total Citation Counts Rankings
Rankings
298,306
1,464
24
Ranking Based On Selection: 24
SK Cheong
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,370
1,285
0.381
* Total Citation Counts Rankings
Rankings
304,936
1,521
25
Ranking Based On Selection: 25
Bee Soo Tueen
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,282
2,030
0.619
Polymer composites
flame retardant
electron beam irradiation