Gaya APA

Groth, C. et al (2022). Essay writing english for academic purposes with exercises and answer key 3rd edition . Yogyakarta: Penerbit Andi.

Gaya MLA

Groth, Cheryl. et al. "Essay writing english for academic purposes with exercises and answer key 3rd edition". Yogyakarta: Penerbit Andi, 2022. Art Original.