Caliph Ali bin Abi Talib’s preventive policy to prevent administrative and financial corruption(35-40 AH / 655-660 AD). cbej [Internet]. 2024 Jun. 23 [cited 2024 Jun. 30];30(124):403-20. Available from: https://cbej.uomustansiriyah.edu.iq/index.php/cbej/article/view/11480