Gaya APA
Mufid, A., Kaelola, A.
(2013).
The William Soeryadjaya Way
.
Yogyakarta:
Kobis.
Gaya MLA
Mufid, Achmad., Kaelola, Akbar.
"The William Soeryadjaya Way".
Yogyakarta:
Kobis,
2013.
Text.