Gaya APA

Riyanto, S., Handhini, A, C. (2016). TOEIC PREPARATION - test of english for international communication (1). Yogyakarta: Andi.

Gaya MLA

Riyanto, Slamet., Handhini, Anna, Christina. "TOEIC PREPARATION - test of english for international communication". 1 Yogyakarta: Andi, 2016. Text.