Riyanto, S. (2008). English For Your Better Future: Speak English, Please 2. Pustaka Pelajar.
Lua i Stíl Chicago (17ú heag.)Riyanto, Slamet. English For Your Better Future: Speak English, Please 2. Pustaka Pelajar, 2008.
Lua MLA (8ú heag.)Riyanto, Slamet. English For Your Better Future: Speak English, Please 2. Pustaka Pelajar, 2008.
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