Gaya APA

Cahyati, A, D. (1997). Fun with grammar: communicative activiteis for the azas grammar series . [S l. :: Printice Hall Regents.

Gaya MLA

Cahyati, Ari, Dewi. "Fun with grammar: communicative activiteis for the azas grammar series". [S l. :: Printice Hall Regents, 1997. Text.