Gaya APA

Riyanto, S. et al (2008). A Quick and Effective Strategy To Understand Structure & Written Expression For TOEFL Test (Cet. 1). Yogyakarta: Pustaka Pelajar.

Gaya MLA

Riyanto, Slamet. et al. "A Quick and Effective Strategy To Understand Structure & Written Expression For TOEFL Test". Cet. 1 Yogyakarta: Pustaka Pelajar, 2008. Text.