Gaya APA
Muhammad, F.
(2011).
The Secret of Success
(
Ed.- Cet. -1)
.
Yogyakarta:
Sabila Pres.
Gaya MLA
Muhammad, Fery.
"The Secret of Success".
Ed.- Cet. -1
Yogyakarta:
Sabila Pres,
2011.
Text.