Riyanto, S. (2004). Gateway English Through Stories A Successful Foreign Language Guide/ Slamet Riyanto. Yogyakarta : Pustaka Pelajar.
Dyfyniad Arddull ChicagoRiyanto, Slamet. Gateway English Through Stories A Successful Foreign Language Guide/ Slamet Riyanto. Yogyakarta : Pustaka Pelajar, 2004.
Dyfyniad MLARiyanto, Slamet. Gateway English Through Stories A Successful Foreign Language Guide/ Slamet Riyanto. Yogyakarta : Pustaka Pelajar, 2004.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.