Gaya APA
DEBORA, F., Yunitasari,Liska, . (2007).
SUCCESS IN ACADEMIC ENGLISH:English for general academic purposes .
Yogyakarta:
Graha Ilmu.
Gaya MLA
DEBORA, FLORIS,FLORA., Yunitasari,Liska, .
"SUCCESS IN ACADEMIC ENGLISH:English for general academic purposes".
Yogyakarta:
Graha Ilmu,
2007.
Koleksi Umum.