Gaya APA

ash-shallabi, A, M. (2014). Biografi Umar Bin Khattab (Ed. 1). Jakarta Timur: ummul qura.

Gaya MLA

ash-shallabi, Ali, Muhammad. "Biografi Umar Bin Khattab". Ed. 1 Jakarta Timur: ummul qura, 2014. Text.