| Minorsky, The Encyclopaedia of Islam, Vol | Muhammad Afridi , , Malaysia : International Islamic University Malaysia , Page 13,14,15 |
|---|---|
| Heinrichs, Brill, 2000 , 741 | Journal of the History of Ideas University of Pennsylvania Press 28 3 : 415—422 |
Zin Dadach 2019 , , United Arab Emirates: Higher Colleges of Technology, Page 3.