Gaya APA

Davis, E, C. (1989). An integrated skills approach : Developing listening proficiency and improving speaking ability . Ujung Pandang: Hasanuddin University and The Summer Institute of linguistics.

Gaya MLA

Davis, Evelyn, C. "An integrated skills approach : Developing listening proficiency and improving speaking ability". Ujung Pandang: Hasanuddin University and The Summer Institute of linguistics, 1989. Text.