Cyssco, D. R. (2003). Systematic Practical English for Daily Conversation / Dhanny R. Cyssco. Jakarta : Kawan Pustaka.
Lua i Stíl Chicago (17ú heag.)Cyssco, Dhanny R. Systematic Practical English for Daily Conversation / Dhanny R. Cyssco. Jakarta : Kawan Pustaka, 2003.
Lua MLA (8ú heag.)Cyssco, Dhanny R. Systematic Practical English for Daily Conversation / Dhanny R. Cyssco. Jakarta : Kawan Pustaka, 2003.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.