Gaya APA
Debora, F., F. et al. (2007).
English for general occupational purposes: finding & maintaining your career (Ed.1).
Yogyakarta:
Graha Ilmu.
Gaya MLA
Floris, Flora, Debora. et al.
"English for general occupational purposes: finding & maintaining your career".
Ed.1
Yogyakarta:
Graha Ilmu,
2007.
Textbook.