Riyanto, S. (2007). The 1st Students Choise Toefl. Pustaka Pelajar.
Chicago Style CitationRiyanto, Slamet. The 1st Students Choise Toefl. Pustaka Pelajar, 2007.
MLA CitationRiyanto, Slamet. The 1st Students Choise Toefl. Pustaka Pelajar, 2007.
Warning: These citations may not always be 100% accurate.