Gaya APA

Al-Buthy, M, S, R. (2009). Kemunduran umat islam . : Kelompook Masmedia Buana Pustaka.

Gaya MLA

Al-Buthy, Muh., Said, Romadlan. "Kemunduran umat islam". : Kelompook Masmedia Buana Pustaka, 2009. .