Gaya APA
Al-Banjari, R, R. et al
(2011).
Be happy at work
(
Cet. 1)
.
Yogyakarta:
FlashBooks.
Gaya MLA
Al-Banjari, Rachmat, Ramadhana. et al.
"Be happy at work".
Cet. 1
Yogyakarta:
FlashBooks,
2011.
Text.