Gaya APA

HEASLEY, B., Sihotang, D, P. (2005). English for Communication : an Integratied Course of English (Cet. 1). Jakarta: Erlangga.

Gaya MLA

HEASLEY, Brendan., Sihotang, Dion, P.. "English for Communication : an Integratied Course of English". Cet. 1 Jakarta: Erlangga, 2005. Text.