Gaya APA

Khalid, K, M., Umar, B, Y. (2009). Dihadapan Umar (Cet. 1). Yogyakarta: Mitra Pustaka.

Gaya MLA

Khalid, Khalid, Muhammad., Umar, Baina, Yaday. "Dihadapan Umar". Cet. 1 Yogyakarta: Mitra Pustaka, 2009. Text.