Gaya APA

Yusuf, A, K, A, A, M, I, A, I. (1981). Mafatih al 'ulum/ Abi Abdillah Muhammad ibn Ahmad ibn Yusuf al Khawarizmi . Kairo: Maktabah al Kulliyat al Azhariyah.

Gaya MLA

Yusuf, Al, Khawarizmi,, Abi, Abdillah, Muhammad, Ibn, Ahmad, Ibn. "Mafatih al 'ulum/ Abi Abdillah Muhammad ibn Ahmad ibn Yusuf al Khawarizmi". Kairo: Maktabah al Kulliyat al Azhariyah, 1981. Text.