Discover the world’s highly cited researchers through the AD Scientific Index 2025 Citation Rankings.
These rankings evaluate scientists based on their total and recent citation counts, capturing the breadth and real-time currency of academic recognition. Citation data reveals how widely a scholar’s work is referenced, applied, and extended across diverse disciplines. The rankings are routinely updated to reflect ongoing citation growth, while eliminating distortions from excessive co-authorship and institutional inflation. Premium tools provide access to detailed citation dynamics, unethical citation behavior detection, and field-normalized benchmarking.
* Total Citation Counts Rankings
Ranking Based On Selection: 1

Islamic law
Ottoman history
Islamic though
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
199
141
0.709
* Total Citation Counts Rankings
Ranking Based On Selection: 2

Islamic law
legal anthropology
Islamic legal schools
Iran Jurisprudence
Saudi Jurisprudenc
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
91
86
0.945
* Total Citation Counts Rankings
Ranking Based On Selection: 3

Islamic Studies
Islamic law
comparative jurisprudence
Development Studies
Political Economy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4
1
0.250
Mustapha Sheikh
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
199
141
0.709
Sumeyra Yakar
University of Exeter
Exeter, United Kingdom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
91
86
0.945
Islamic law
legal anthropology
Islamic legal schools
Iran Jurisprudence
Saudi Jurisprudenc
Ali Ali
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4
1
0.250
Islamic Studies
Islamic law
comparative jurisprudence
Development Studies
Political Economy