Gaya APA

Aqqad, A, M., Mahdamy, A. (1992). Keagungan Umar bin Khattab (edisi 1). Solo: Pustaka Mantiq.

Gaya MLA

Aqqad, Abbas, Mahmud., Mahdamy, Abdulkadir. "Keagungan Umar bin Khattab". edisi 1 Solo: Pustaka Mantiq, 1992. Text.