Gaya APA
Guntoro, O, S, D.
(2001).
Basic Skill for English Conversation
.
Bandung:
Yrama Widya.
Gaya MLA
Guntoro, Otong, Setiawan, Djuharie-U.D.
"Basic Skill for English Conversation".
Bandung:
Yrama Widya,
2001.
Art Original.