Riyanto, S. (2008). The 1'st Student's Choice TOEFL: Test Of English As A Foreign Language. Pustaka Pelajar.
Dyfyniad Arddull ChicagoRiyanto, Slamet. The 1'st Student's Choice TOEFL: Test Of English As A Foreign Language. Pustaka Pelajar, 2008.
Dyfyniad MLARiyanto, Slamet. The 1'st Student's Choice TOEFL: Test Of English As A Foreign Language. Pustaka Pelajar, 2008.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.