Gaya APA

Hidayati, N, N. et al (2026). Top Strategy IELTS=International English Language Testing System (Cet. 7.--). Jakarta: Gramedia.

Gaya MLA

Hidayati, Niswatin, Nurul. et al. "Top Strategy IELTS=International English Language Testing System". Cet. 7.-- Jakarta: Gramedia, 2026. Text.