APA (7th ed.) Citation

Lubis, Y. (1988). Developing communicative proficiency in the english as a foreign language (FFL) class. Dep. P r K.-Dikti.

Chicago Style (17th ed.) Citation

Lubis, Yusnaini. Developing Communicative Proficiency in the English as a Foreign Language (FFL) Class. Dep. P r K.-Dikti, 1988.

MLA (8th ed.) Citation

Lubis, Yusnaini. Developing Communicative Proficiency in the English as a Foreign Language (FFL) Class. Dep. P r K.-Dikti, 1988.

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