Gaya APA

Riyanto, S., Suryani, L. (2024). The complete book of the IELTS preparation : panduan persiapan tes IELTS (Ed. I). Yogyakarta: ANDI.

Gaya MLA

Riyanto, Slamet., Suryani, Laila. "The complete book of the IELTS preparation : panduan persiapan tes IELTS". Ed. I Yogyakarta: ANDI, 2024. Text.