Gaya APA

Asifudin, A, J. (2004). Etos Kerja Islami (Cet. 1-Ed. 1). Sarawak: Muhammadiyah University Press.

Gaya MLA

Asifudin, Ahmad, Janan. "Etos Kerja Islami". Cet. 1-Ed. 1 Sarawak: Muhammadiyah University Press, 2004. Buku Teks.