Gaya APA
Shadr, M, B, A.
(2011).
Problematika sosial dunia modern
.
Yogyakarta:
Rausyan Fikr Institute.
Gaya MLA
Shadr, Muhammad, Baqir, Ash.
"Problematika sosial dunia modern".
Yogyakarta:
Rausyan Fikr Institute,
2011.
Text.