Gaya APA

RIYANTO, S. (Yogyakarta). Toefl Test : Test Strategy For Structure and Written Expression (Cet.1). : Pustaka Pelajar.

Gaya MLA

RIYANTO, SLAMET. "Toefl Test : Test Strategy For Structure and Written Expression". Cet.1 : Pustaka Pelajar, Yogyakarta. Text.