Gaya APA

Qal'ahji, M, R., Mujieb, M, A. (1999). Ensiklopedi Fiqih Umar bin Khatab ra / Muhammad Rawwas Qal'ahji (Ed.1,Cet.1). Jakarta: PT RajaGrafindo Persada.

Gaya MLA

Qal'ahji, Muhammad, Rawwas., Mujieb, M., Abdul. "Ensiklopedi Fiqih Umar bin Khatab ra / Muhammad Rawwas Qal'ahji". Ed.1,Cet.1 Jakarta: PT RajaGrafindo Persada, 1999. Text.