Gaya APA

Hok, R. et al (1993). English Conversation Practices : an intensive course in english supplement / Ruth Hok;Shirley Minkewitz;Don L.F.Nilsen . indonesia: Binarupa Aksara.

Gaya MLA

Hok, Ruth. et al. "English Conversation Practices : an intensive course in english supplement / Ruth Hok;Shirley Minkewitz;Don L.F.Nilsen". indonesia: Binarupa Aksara, 1993. Text.