Citation Rankings
Highly Cited Researchers

Universiti Sains Malaysia Highly Cited Researchers Citation Rankings 2025

The Citation Rankings (Highly Cited Researchers) 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
Malaysia
Kamarul Imran Musa
Medical Epidemiology
Disease Modelling
Biostatistics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
121,412
110,881
0.913
* Total Citation Counts Rankings
Ranking Based On Selection :2
Malaysia
T Ramayah|Ramayah Thurasamy, Thurasamy, R.
Technology Acceptance
Technology Management
Operations Management
PLS
Technology Adoption
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
62,296
46,311
0.743
* Total Citation Counts Rankings
Ranking Based On Selection :3
Malaysia
Cheng LH
Food Technology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
47,628
21,305
0.447
* Total Citation Counts Rankings
Ranking Based On Selection :4
Malaysia
Abdul Rahman Mohamed
Reaction Engineering & Catalysis
Air Pollution and Waste Water Control Engineering
Fuel Technology
Nanoscience & Nanotechnol
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
47,381
27,050
0.571
* Total Citation Counts Rankings
Ranking Based On Selection :5
Malaysia
Hamidi Abdul Aziz
Environmental engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
40,531
24,607
0.607
* Total Citation Counts Rankings
Ranking Based On Selection :6
Malaysia
AA Karim
Food Science and Technology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
34,334
18,726
0.545
* Total Citation Counts Rankings
Ranking Based On Selection :7
Malaysia
Abdul Khalil
Biopolymer
Biocomposite
Bioplastic
Aerogel
Nanofiber
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
29,224
18,458
0.632
* Total Citation Counts Rankings
Ranking Based On Selection :8
Malaysia
Leng Huat Foo
Public Health Nutrition
Nutritional Epidemiology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
28,873
23,480
0.813
* Total Citation Counts Rankings
Ranking Based On Selection :9
Malaysia
Hanafi Ismail
rubber
plastic
recycling
blends
composites
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
27,443
12,001
0.437
* Total Citation Counts Rankings
Ranking Based On Selection :10
Malaysia
Khayriyyah Mohd Hanafiah
Medical Microbiology
Immunology
Science communication
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
21,440
9,038
0.422
* Total Citation Counts Rankings
Ranking Based On Selection :11
Malaysia
Mohamed Azmi Hassali
Pharmacy Practice Research
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
20,078
13,194
0.657
* Total Citation Counts Rankings
Ranking Based On Selection :12
Malaysia
Keng Yuen Foo
Water Treatment Technology
Water Security Management
Waste Utilization
Water-Food Nexus
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,089
10,530
0.552
* Total Citation Counts Rankings
Ranking Based On Selection :13
Malaysia
Kit Lam Chan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,047
6,636
0.348
* Total Citation Counts Rankings
Ranking Based On Selection :14
Malaysia
Ahmad Zuhairi Abdullah
Chemical reaction
renewable energy
environmental engineering
oleochemical engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18,293
10,291
0.563
* Total Citation Counts Rankings
Ranking Based On Selection :15
Malaysia
Othman Jalil
IoT
AI
Big Data
network
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
17,847
12,929
0.724
* Total Citation Counts Rankings
Ranking Based On Selection :16
Malaysia
Jafri Malin Abdullah
Clinical
applied and Fundamental neurosciences
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
17,279
8,585
0.497
* Total Citation Counts Rankings
Ranking Based On Selection :17
Malaysia
Kumar Sudesh
Biodegradable polymers
polyhydroxyalkanoates
rubber biosynthesis and degradation
oil palm biomass
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,801
9,641
0.574
* Total Citation Counts Rankings
Ranking Based On Selection :18
Malaysia
Rokiah Hashim
Utilization of bioresources
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,566
9,850
0.595
* Total Citation Counts Rankings
Ranking Based On Selection :19
Malaysia
Hazizan Md Akil
Polymer Composites
Impact Dynamics
Sandwich Structures
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,500
10,810
0.655
* Total Citation Counts Rankings
Ranking Based On Selection :20
Malaysia
Othman Sulaiman
Wood
non-wood
durability
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,109
9,277
0.576
* Total Citation Counts Rankings
Ranking Based On Selection :21
Malaysia
Mohd Rafatullah
Analytical and Environmental Chemistry
Water pollutants
Water and wastewater treatment
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,080
11,351
0.706
* Total Citation Counts Rankings
Ranking Based On Selection :22
Malaysia
Hooi Hooi Lean
financial economics
Asia-Pacific
energy economics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
15,444
10,116
0.655
* Total Citation Counts Rankings
Ranking Based On Selection :23
Malaysia
Tan Mei Lan *
Programmed cell death
drug-drug and drug-herb interactions
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,976
7,194
0.480
* Total Citation Counts Rankings
Ranking Based On Selection :24
Malaysia
Andrew KG Tan
Health economics
Consumer and household economics
Environmental economics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,319
12,940
0.904
* Total Citation Counts Rankings
Ranking Based On Selection :25
Malaysia
Wan Saime Wan Ngah
Environmental Science
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,126
5,178
0.367
* Total Citation Counts Rankings
Rankings
2,118
Malaysia
3
1
Ranking Based On Selection: 1
Kamarul Imran Musa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
121,412
110,881
0.913
Medical Epidemiology
Disease Modelling
Biostatistics
* Total Citation Counts Rankings
Rankings
7,035
Malaysia
7
2
Ranking Based On Selection: 2
T Ramayah|Ramayah Thurasamy, Thurasamy, R.
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
62,296
46,311
0.743
Technology Acceptance
Technology Management
Operations Management
PLS
Technology Adoption
* Total Citation Counts Rankings
Rankings
10,801
Malaysia
14
3
Ranking Based On Selection: 3
Cheng LH
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
47,628
21,305
0.447
* Total Citation Counts Rankings
Rankings
10,896
Malaysia
15
4
Ranking Based On Selection: 4
Abdul Rahman Mohamed
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
47,381
27,050
0.571
Reaction Engineering & Catalysis
Air Pollution and Waste Water Control Engineering
Fuel Technology
Nanoscience & Nanotechnol
* Total Citation Counts Rankings
Rankings
13,977
Malaysia
17
5
Ranking Based On Selection: 5
Hamidi Abdul Aziz
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
40,531
24,607
0.607
* Total Citation Counts Rankings
Rankings
18,148
Malaysia
23
6
Ranking Based On Selection: 6
AA Karim
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
34,334
18,726
0.545
* Total Citation Counts Rankings
Rankings
23,362
Malaysia
30
7
Ranking Based On Selection: 7
Abdul Khalil
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
29,224
18,458
0.632
Biopolymer
Biocomposite
Bioplastic
Aerogel
Nanofiber
* Total Citation Counts Rankings
Rankings
23,788
Malaysia
31
8
Ranking Based On Selection: 8
Leng Huat Foo
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
28,873
23,480
0.813
* Total Citation Counts Rankings
Rankings
25,635
Malaysia
34
9
Ranking Based On Selection: 9
Hanafi Ismail
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
27,443
12,001
0.437
* Total Citation Counts Rankings
Rankings
36,768
Malaysia
57
10
Ranking Based On Selection: 10
Khayriyyah Mohd Hanafiah
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
21,440
9,038
0.422
Medical Microbiology
Immunology
Science communication
* Total Citation Counts Rankings
Rankings
40,374
Malaysia
70
11
Ranking Based On Selection: 11
Mohamed Azmi Hassali
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
20,078
13,194
0.657
* Total Citation Counts Rankings
Rankings
43,154
Malaysia
80
12
Ranking Based On Selection: 12
Keng Yuen Foo
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,089
10,530
0.552
Water Treatment Technology
Water Security Management
Waste Utilization
Water-Food Nexus
* Total Citation Counts Rankings
Rankings
43,290
Malaysia
82
13
Ranking Based On Selection: 13
Kit Lam Chan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,047
6,636
0.348
* Total Citation Counts Rankings
Rankings
45,793
Malaysia
89
14
Ranking Based On Selection: 14
Ahmad Zuhairi Abdullah
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18,293
10,291
0.563
Chemical reaction
renewable energy
environmental engineering
oleochemical engineering
* Total Citation Counts Rankings
Rankings
47,397
Malaysia
93
15
Ranking Based On Selection: 15
Othman Jalil
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
17,847
12,929
0.724
IoT
AI
Big Data
network
* Total Citation Counts Rankings
Rankings
49,538
Malaysia
99
16
Ranking Based On Selection: 16
Jafri Malin Abdullah
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
17,279
8,585
0.497
* Total Citation Counts Rankings
Rankings
51,344
Malaysia
104
17
Ranking Based On Selection: 17
Kumar Sudesh
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,801
9,641
0.574
Biodegradable polymers
polyhydroxyalkanoates
rubber biosynthesis and degradation
oil palm biomass
* Total Citation Counts Rankings
Rankings
52,319
Malaysia
107
18
Ranking Based On Selection: 18
Rokiah Hashim
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,566
9,850
0.595
Utilization of bioresources
* Total Citation Counts Rankings
Rankings
52,595
Malaysia
108
19
Ranking Based On Selection: 19
Hazizan Md Akil
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,500
10,810
0.655
* Total Citation Counts Rankings
Rankings
54,389
Malaysia
110
20
Ranking Based On Selection: 20
Othman Sulaiman
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,109
9,277
0.576
* Total Citation Counts Rankings
Rankings
54,516
Malaysia
112
21
Ranking Based On Selection: 21
Mohd Rafatullah
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,080
11,351
0.706
Analytical and Environmental Chemistry
Water pollutants
Water and wastewater treatment
* Total Citation Counts Rankings
Rankings
57,512
Malaysia
125
22
Ranking Based On Selection: 22
Hooi Hooi Lean
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
15,444
10,116
0.655
* Total Citation Counts Rankings
Rankings
59,927
Malaysia
132
23
Ranking Based On Selection: 23
Tan Mei Lan *
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,976
7,194
0.480
Programmed cell death
drug-drug and drug-herb interactions
* Total Citation Counts Rankings
Rankings
63,481
Malaysia
140
24
Ranking Based On Selection: 24
Andrew KG Tan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,319
12,940
0.904
Health economics
Consumer and household economics
Environmental economics
* Total Citation Counts Rankings
Rankings
64,672
Malaysia
142
25
Ranking Based On Selection: 25
Wan Saime Wan Ngah
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,126
5,178
0.367