Gaya APA
Adam, B., Natalia, .
(2011).
TOEFL workshop in 30 minutes
(
1)
.
Yogyakarta:
Pustaka Salomon.
Gaya MLA
Adam, Billy., Natalia, .
"TOEFL workshop in 30 minutes".
1
Yogyakarta:
Pustaka Salomon,
2011.
Text.