Gaya APA
SUwandari, K, R, A, R. (2007).
BUSINESS & SECRETARIAL ENGLISH GAMBITHS .
Yogyakarta:
Pinus Book Publisher.
Gaya MLA
SUwandari, KunJana, Rahardi, Agustina, Reni.
"BUSINESS & SECRETARIAL ENGLISH GAMBITHS".
Yogyakarta:
Pinus Book Publisher,
2007.
Text.