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.