Gaya APA
Yusuf Muhammad, SQ. (2010).
Rahasia Surga .
YOGYAKARTA:
Interprebook.
Gaya Chicago
Yusuf Muhammad, SQ.
Rahasia Surga.
YOGYAKARTA:
Interprebook,
2010.
Text.
Gaya MLA
Yusuf Muhammad, SQ.
Rahasia Surga.
YOGYAKARTA:
Interprebook,
2010.
Text.
Gaya Turabian
Yusuf Muhammad, SQ.
Rahasia Surga.
YOGYAKARTA:
Interprebook,
2010.
Print.