Gaya APA

Ismanthono, H, W. (2019). Top Up Your TOIEC: test of english for international communication scores (Cet. 1). YOGYAKARTA: ANDI.

Gaya MLA

Ismanthono, Henricus, W. "Top Up Your TOIEC: test of english for international communication scores". Cet. 1 YOGYAKARTA: ANDI, 2019. Text.