Cita APA (7a ed.)

DWIJATMOKO, B. (1990). Communicative grammar practice (for first year english department university students). Kanisius.

Cita Chicago Style (17a ed.)

DWIJATMOKO, B.B. Communicative Grammar Practice (for First Year English Department University Students). Yogyakarta: Kanisius, 1990.

Cita MLA (9a ed.)

DWIJATMOKO, B.B. Communicative Grammar Practice (for First Year English Department University Students). Kanisius, 1990.