Gaya APA

Hassan, A, A, H. (2007). Sales and Contracts in Early Islamic Commercial Law / Abdullah Alwi Haji Hassan . Selangor: The Other Press.

Gaya MLA

Hassan, Abdullah, Alwi, Haji. "Sales and Contracts in Early Islamic Commercial Law / Abdullah Alwi Haji Hassan". Selangor: The Other Press, 2007. Text.