Gaya APA

Riyanto, S., Handhini, A, C. (2016). TOEFL Preparation:The Test Of English as a Foreign Language (Ed. I). Yogyakarta: ANDI.

Gaya MLA

Riyanto, Slamet., Handhini, Anna, Christina. "TOEFL Preparation:The Test Of English as a Foreign Language". Ed. I Yogyakarta: ANDI, 2016. Text.