Gaya APA

Hidayati, N, N., Rizka, H. (2024). Valid IELTS Test Preparation . Yogyakarta: Pustaka Baru Press..

Gaya MLA

Hidayati, Niswatin, Nurul., Rizka, Haira. "Valid IELTS Test Preparation". Yogyakarta: Pustaka Baru Press., 2024. Text.