Gaya APA

Arifin, M, Z. (2017). USING GOOD ENGLISH FOR TOEFL PREPARATION (Ed. 1). Yogyakarta: ANDI OFFSET.

Gaya MLA

Arifin, M., Zainul. "USING GOOD ENGLISH FOR TOEFL PREPARATION". Ed. 1 Yogyakarta: ANDI OFFSET, 2017. Text.