Gaya APA

Hakam, A, B, A. (2002). Biografi Umar bin Abdul Aziz: penegak keadilan / Abdullah bin Abdul Hakam; penerjemah : Habiburrohman Syaerozi (Cet.2). : Gema Insani Press.

Gaya MLA

Hakam, Abdullah, Bin, Abdul. "Biografi Umar bin Abdul Aziz: penegak keadilan / Abdullah bin Abdul Hakam; penerjemah : Habiburrohman Syaerozi". Cet.2 : Gema Insani Press, 2002. Referensi.