Gaya APA

RIYANTO, S., Suryani, L. (2021). THE COMPLTE BOOK OF THE LETS PREPARATION : PANDUAN PERSIAPAN TES IELTS (EDISI 1). Yogyakarta: Andi Yogyakarta.

Gaya MLA

RIYANTO, SLAMET., Suryani, Laila. "THE COMPLTE BOOK OF THE LETS PREPARATION : PANDUAN PERSIAPAN TES IELTS". EDISI 1 Yogyakarta: Andi Yogyakarta, 2021. Text.