Gaya APA

Ismanthono, H, W. (2019). Top up Your TOEIC Scores, Test of English for International Communication (1). Yogyakarta: Penerbit Andi.

Gaya MLA

Ismanthono, Henricus, W.. "Top up Your TOEIC Scores, Test of English for International Communication ". 1 Yogyakarta: Penerbit Andi, 2019. .