Gaya APA

Lubuis, Yusnaini.. (1988). DEVELOPING COMMUNICATIVE PROFICIENCY IN THE ENGLISH AS A FOREIGN LANGUAGE (EFL) CLASS . Jakarta: Depdikbud.

Gaya Chicago

Lubuis, Yusnaini.. DEVELOPING COMMUNICATIVE PROFICIENCY IN THE ENGLISH AS A FOREIGN LANGUAGE (EFL) CLASS. Jakarta: Depdikbud, 1988. Text.

Gaya MLA

Lubuis, Yusnaini.. DEVELOPING COMMUNICATIVE PROFICIENCY IN THE ENGLISH AS A FOREIGN LANGUAGE (EFL) CLASS. Jakarta: Depdikbud, 1988. Text.

Gaya Turabian

Lubuis, Yusnaini.. DEVELOPING COMMUNICATIVE PROFICIENCY IN THE ENGLISH AS A FOREIGN LANGUAGE (EFL) CLASS. Jakarta: Depdikbud, 1988. Print.