Gaya APA

Hartanto, J, S. et al (2009). Accurate, Brief and Clear English Grammar (Cet 41). Surabaya: Indah Surabaya.

Gaya MLA

Hartanto, John, S.. et al. "Accurate, Brief and Clear English Grammar". Cet 41 Surabaya: Indah Surabaya, 2009. Text.