Gaya APA

Haqqi, A, R, A. (2009). The philosophy of Islamic law of transactions (Ed. 1). Kuala Lumpur: cert Publications sdn Bhd.

Gaya MLA

Haqqi, Abdurrahman, Raden, Aji. "The philosophy of Islamic law of transactions". Ed. 1 Kuala Lumpur: cert Publications sdn Bhd, 2009. Buku.