Gaya APA

Bentang, . (2022). Buku pintar IELTS (International english Language Testing system ) / Bentang (Ed. 4, Cet. 1). Yogyakarta: Bentang.

Gaya MLA

Bentang, . "Buku pintar IELTS (International english Language Testing system ) / Bentang". Ed. 4, Cet. 1 Yogyakarta: Bentang, 2022. Text.