Gaya APA

Khalid, K, M., Qura, T, E, U. (2013). Biografi khalifah Rasulullah : Abu Bakar Umar, Utsman, Ali & Umar bin Abdul Aziz . Jakarta: Ummul Qura.

Gaya MLA

Khalid, Khalid, Muhammad., Qura, Tim, Editor, Ummul. "Biografi khalifah Rasulullah : Abu Bakar Umar, Utsman, Ali & Umar bin Abdul Aziz". Jakarta: Ummul Qura, 2013. Text.