al-Gharar wa atharuhu fi al-'uqud fi al-fiqh al-islami : dirasah muqaranah - al-Darir, al-Siddiq Muhammad al-Amin (al-Khurtum, Sudan : al-Dar al-Sudaniyyah Lil Kutub, 1990)
Thesis (Ph.D) - University Of Khurtum, 1990
Keywords: Risk (Islamic law); Contracts (Islamic law); Deception (Islamic law); Sales (Islamic law)