Gaya APA

ALEXANDER, L. (1991). NEW CONCEPT ENGLISH DEVELOPING SKILLS : SUPPLEMENTARY WRITTEN EXERCISES (CET.5). YOGYAKARTA: KANISIUS.

Gaya MLA

ALEXANDER, L.G.. "NEW CONCEPT ENGLISH DEVELOPING SKILLS : SUPPLEMENTARY WRITTEN EXERCISES". CET.5 YOGYAKARTA: KANISIUS, 1991. Prodi S1 Sastra Inggris.