APA Style
Lubis, yusnaini. (1988).
Developing Comunicative Proficiency in the english as foreign Language (EFL) Class .
Jakarta:
Depdikbud.
Chicago Style
Lubis, yusnaini.
Developing Comunicative Proficiency in the english as foreign Language (EFL) Class.
Jakarta:
Depdikbud,
1988.
Text.
MLA Style
Lubis, yusnaini.
Developing Comunicative Proficiency in the english as foreign Language (EFL) Class.
Jakarta:
Depdikbud,
1988.
Text.
Turabian Style
Lubis, yusnaini.
Developing Comunicative Proficiency in the english as foreign Language (EFL) Class.
Jakarta:
Depdikbud,
1988.
Print.