Gaya APA

Alhumaidi, A, A, B, A. (2015). Umar Bin Khaththab: Al-Faruq Sang Penakluk . Solo: Tiga Serangkai.

Gaya MLA

Alhumaidi, Abdul, Aziz, Bin, Abdullah. "Umar Bin Khaththab: Al-Faruq Sang Penakluk". Solo: Tiga Serangkai, 2015. Texts.