Gaya APA

Siba'i, Y, A. (2008). Izrail / Yusuf As Siba'i (Cet. 1). Yogyakarta: [s.n].

Gaya MLA

Siba'i, Yusuf, As. "Izrail / Yusuf As Siba'i". Cet. 1 Yogyakarta: [s.n], 2008. Text.