Gaya APA
Groth, C. et al (2022).
Essay Writing English for academic purposes (Ed. 1 cet. 1).
Yogyakarta:
Andi Offset.
Gaya MLA
Groth, Cheryl. et al.
"Essay Writing English for academic purposes".
Ed. 1 cet. 1
Yogyakarta:
Andi Offset,
2022.
Buku English.