Gaya APA

Riyanto, S. (2015). The 1st Student's Choice TOEFL Preparation ( Test Of English As A Foreign Language ) / Slamet Riyanto (cet.4). Yogyakarta: Pustaka Pelajar.

Gaya MLA

Riyanto, Slamet. "The 1st Student's Choice TOEFL Preparation ( Test Of English As A Foreign Language ) / Slamet Riyanto". cet.4 Yogyakarta: Pustaka Pelajar, 2015. Text.