Gaya APA
Marilyn, T, B, ,. (2002).
Learning Grammar 2 ( over 400 question to test your grammar ) (2).
Jakarta:
Bhuana Ilmu Populer.
Gaya MLA
Marilyn, Tan, B.A, ,.
"Learning Grammar 2 ( over 400 question to test your grammar )".
2
Jakarta:
Bhuana Ilmu Populer,
2002.
Text.