APA Style
Asifudin, A, J.
(2004).
Etos Kerja Islami
.
Surakarta:
Muhammadiyah University Press.
MLA Style
Asifudin, Ahmad, Janan.
"Etos Kerja Islami".
Surakarta:
Muhammadiyah University Press,
2004.
Text.