Gaya APA

Murad, D, M. et al (2014). Biografi Khalifah Rasulullah: Abu Bakar, Umar, Utsman, Ali (6). Indonesia: Zaman.

Gaya MLA

Murad, Dr., Musthafa. et al. "Biografi Khalifah Rasulullah: Abu Bakar, Umar, Utsman, Ali". 6 Indonesia: Zaman, 2014. Text.