Gaya APA

Riyanto, S. (2008). A Quick and Effective Strategy to Understand Structure and Written Expression for Toefl Test . Yogyakarta: Yogyakarta : PUstaka pelajar.

Gaya MLA

Riyanto, Slamet. "A Quick and Effective Strategy to Understand Structure and Written Expression for Toefl Test". Yogyakarta: Yogyakarta : PUstaka pelajar, 2008. Text.