Cyssco, D. R. (2003). Systematic Practical English for Daily Conversation / Dhanny R. Cyssco. Jakarta : Kawan Pustaka.
Chicago Style (17. basım) AtıfCyssco, Dhanny R. Systematic Practical English for Daily Conversation / Dhanny R. Cyssco. Jakarta : Kawan Pustaka, 2003.
MLA (8th ed.) AtıfCyssco, Dhanny R. Systematic Practical English for Daily Conversation / Dhanny R. Cyssco. Jakarta : Kawan Pustaka, 2003.
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