Gaya APA
Jonathan Sarwono, Yudhy Purwanto. (Thn.2013).
English for Academic Purposes (SATU).
Yogyakarta:
CV. ANDI OFSFET.
Gaya Chicago
Jonathan Sarwono, Yudhy Purwanto.
English for Academic Purposes.
SATU
Yogyakarta:
CV. ANDI OFSFET,
Thn.2013.
Text.
Gaya MLA
Jonathan Sarwono, Yudhy Purwanto.
English for Academic Purposes.
SATU
Yogyakarta:
CV. ANDI OFSFET,
Thn.2013.
Text.
Gaya Turabian
Jonathan Sarwono, Yudhy Purwanto.
English for Academic Purposes.
SATU
Yogyakarta:
CV. ANDI OFSFET,
Thn.2013.
Print.