APA Citation

-. (1989). Practice And Progress New Concept English (-.). Yogyakarta: Kanisius.

Chicago Style Citation

-. Practice And Progress New Concept English. -. Yogyakarta: Kanisius, 1989.

MLA Citation

-. Practice And Progress New Concept English. -. Yogyakarta: Kanisius, 1989.

Warning: These citations may not always be 100% accurate.