Gaya APA

Riyanto, S., Suryani, L. (2024). The Complete Book of the IELTS Preparation (Ed. 1. Cet. 1.--). Yogyakarta: Andi.

Gaya MLA

Riyanto, Slamet., Suryani, Laila. "The Complete Book of the IELTS Preparation". Ed. 1. Cet. 1.-- Yogyakarta: Andi, 2024. Text.