Gaya APA

Groth, C. et al (2022). Essay Writing English For Academic Purpose (Ed. 1.-- Cet. 1.--). Yogyakarta: Penerbit Andi.

Gaya MLA

Groth, Cheryl. et al. "Essay Writing English For Academic Purpose". Ed. 1.-- Cet. 1.-- Yogyakarta: Penerbit Andi, 2022. Text.