Gaya APA
Groth, C. et al (2022).
Essay Writing English for Academic Purposes; With Exercises and Answer key 3rd Edition (1).
Yogyakarta:
Andi.
Gaya MLA
Groth, Cheryl. et al.
"Essay Writing English for Academic Purposes; With Exercises and Answer key 3rd Edition".
1
Yogyakarta:
Andi,
2022.
Text.