Gaya APA

PERSULESSY, G, H. (1988). Listening improvement exercises for students of english as a foreign language . Jakarta: Direktorat Pendidikan dan kebudayaan.

Gaya MLA

PERSULESSY, George, Herman. "Listening improvement exercises for students of english as a foreign language". Jakarta: Direktorat Pendidikan dan kebudayaan, 1988. Text.