Riyanto, S. (2004). Gateway English Through Stories A Successful Foreign Language Guide/ Slamet Riyanto. Yogyakarta : Pustaka Pelajar.
Lua i Stíl Chicago (17ú heag.)Riyanto, Slamet. Gateway English Through Stories A Successful Foreign Language Guide/ Slamet Riyanto. Yogyakarta : Pustaka Pelajar, 2004.
Lua MLA (8ú heag.)Riyanto, Slamet. Gateway English Through Stories A Successful Foreign Language Guide/ Slamet Riyanto. Yogyakarta : Pustaka Pelajar, 2004.
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