Gaya APA
SARWONO, J., PURWANTO, Y. (2013).
ENGLISH FOR ACADEMIC PURPOSES A SUCCESSFUL WAY TO LEARN SCIENTIFIC ENGLISH .
YOGYAKARTA:
ANDI.
Gaya MLA
SARWONO, JONATHAN., PURWANTO, YUDHY.
"ENGLISH FOR ACADEMIC PURPOSES A SUCCESSFUL WAY TO LEARN SCIENTIFIC ENGLISH".
YOGYAKARTA:
ANDI,
2013.
Text.