Gaya APA
Rahardi, K., Indrojiono, . (2007).
COMMUNICATIVE ENGLISH FOR BUSSINESS & PUBLIC RELATIONS SERVICES .
Yogyakarta:
Amara Books.
Gaya MLA
Rahardi, Kunjana., Indrojiono, .
"COMMUNICATIVE ENGLISH FOR BUSSINESS & PUBLIC RELATIONS SERVICES".
Yogyakarta:
Amara Books,
2007.
Text.