Gaya APA

Groth, C. (2013). ESSAY WRITING: Enghlish For Academic Purposes with Exercises and Answer Key (Ed. 2). YOGYAKARTA: ANDI.

Gaya MLA

Groth, Cheryl. "ESSAY WRITING: Enghlish For Academic Purposes with Exercises and Answer Key". Ed. 2 YOGYAKARTA: ANDI, 2013. Text.