Gaya APA
FLORIS, F, D. (2007).
Success in Academic English: English For General Academic Purposes (1).
Yogyakarta:
Graha Ilmu.
Gaya MLA
FLORIS, Flora, Debora.
"Success in Academic English: English For General Academic Purposes".
1
Yogyakarta:
Graha Ilmu,
2007.
Buku.