Gaya APA
J., H.
(1992).
Longman English Course : Book 3b
(
Cet. 10.--)
.
Yogyakarta:
Kanisius.
Gaya MLA
J., Hobbs.
"Longman English Course : Book 3b".
Cet. 10.--
Yogyakarta:
Kanisius,
1992.
Text.