APA Style

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

MLA Style

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