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
Chemical and Environmental Engineering
Bioprocess Engineering
Renewable Energy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,024
2,968
0.981
* Total Citation Counts Rankings
Ranking Based On Selection :2
wastewater treatment
water quality
modeling
biological processes
civil and environmental engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,111
1,950
0.924
* Total Citation Counts Rankings
Ranking Based On Selection :3
Sustainability reporting
Corporate governance
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,591
1,121
0.705
* Total Citation Counts Rankings
Ranking Based On Selection :4
climate change
waste management
disaster management
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
934
367
0.393
* Total Citation Counts Rankings
Ranking Based On Selection :5
Artificial Intelligence
Machine Learning
Environmental Engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
617
611
0.990
* Total Citation Counts Rankings
Ranking Based On Selection :6
Environmental Engineering
AI Prediction Algorithms
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
203
203
1.000
* Total Citation Counts Rankings
Ranking Based On Selection :7
Environmental Engineering
Sustainable River Management
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
175
144
0.823
Shir Reen Chia
Universiti Tenaga Nasional
Kajang, Malaysia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,024
2,968
0.981
Chemical and Environmental Engineering
Bioprocess Engineering
Renewable Energy
Gasim Hayder
Universiti Tenaga Nasional
Kajang, Malaysia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,111
1,950
0.924
wastewater treatment
water quality
modeling
biological processes
civil and environmental engineering
Bakhtiar Alrazi
Universiti Tenaga Nasional
Kajang, Malaysia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,591
1,121
0.705
Sustainability reporting
Corporate governance
Kok Hua Chua
Universiti Tenaga Nasional
Kajang, Malaysia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
934
367
0.393
climate change
waste management
disaster management
Nur'Atiah Zaini
Universiti Tenaga Nasional
Kajang, Malaysia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
617
611
0.990
Artificial Intelligence
Machine Learning
Environmental Engineering
Ayman Yafouz
Universiti Tenaga Nasional
Kajang, Malaysia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
203
203
1.000
Environmental Engineering
AI Prediction Algorithms
Ts Hairun Aishah Mohiyaden Abdul Kader
Universiti Tenaga Nasional
Kajang, Malaysia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
175
144
0.823
Environmental Engineering
Sustainable River Management