Gaya APA

Training, I, O, E, L. (2022). Buku Pintar IELTS (International English Language Testing System) . Yogyakarta: Penerbit Bentang.

Gaya MLA

Training, Institute, Of, English, Language. "Buku Pintar IELTS (International English Language Testing System)". Yogyakarta: Penerbit Bentang, 2022. Text.