APA Style

HIDAYATI, N, N. et al (2018). Smart pocket IELTS (Cetakan pertama, 2018). Sleman, Yogyakarta: Charissa Publisher.

MLA Style

HIDAYATI, NISWATIN, NURUL. et al. "Smart pocket IELTS". Cetakan pertama, 2018 Sleman, Yogyakarta: Charissa Publisher, 2018. Text.