Gaya APA

Floris, F, D. et al (2007). Success in Academic English: English for General Academic Purposes (1. st). Yogyakarta: Graha Ilmu.

Gaya MLA

Floris, Flora, Debora. et al. "Success in Academic English: English for General Academic Purposes". 1. st Yogyakarta: Graha Ilmu, 2007. Text.