Gaya APA

Watt, W, M. (1948). Fre will and predestination in Islam / W. Montgomery Watt . : Luzac and Company LTD.

Gaya MLA

Watt, W., Montgomery. "Fre will and predestination in Islam / W. Montgomery Watt". : Luzac and Company LTD, 1948. Referensi.