Gaya APA

Azar, B, S., Budijanto, . (1993). Understanding and using English grammar (ed. 2). : Binarupa Aksara.Jakarta.

Gaya MLA

Azar, Betty, Schrampfer., Budijanto, . "Understanding and using English grammar ". ed. 2 : Binarupa Aksara.Jakarta, 1993. Koleksi Elektronik.