Gaya APA
Groth, C. et al (2022).
Essay Writing English for Academic Puspose with Exercises and Answer Key 3rd Edition .
Yogyakarta:
Andi.
Gaya MLA
Groth, Cheryl. et al.
"Essay Writing English for Academic Puspose with Exercises and Answer Key 3rd Edition".
Yogyakarta:
Andi,
2022.
Text.