APA Style
RAHARDI, K., Indrojiono, F. (2007).
Communicative English for business & public ralations service (1).
Yogyakarta:
Amara Books.
MLA Style
RAHARDI, KUNJANA., Indrojiono, FX..
"Communicative English for business & public ralations service".
1
Yogyakarta:
Amara Books,
2007.
Text.