Gaya APA

Ash-Shallabi, A, M. (2017). Biografi Umar Bin Al-Khathab (Cet. 5). Jakarta: Pustaka Al-kautsar.

Gaya MLA

Ash-Shallabi, Ali, Muhammad. "Biografi Umar Bin Al-Khathab". Cet. 5 Jakarta: Pustaka Al-kautsar, 2017. Text.