APA Style

Groth, C., Rehatta, N, M. (2007). Essay Writing English For Academic Purposes With Exercise and Answer (-). Jogjakarta: Yogyakarta: Andi,.

MLA Style

Groth, Cheryl., Rehatta, Nancy, Margarita. "Essay Writing English For Academic Purposes With Exercise and Answer". - Jogjakarta: Yogyakarta: Andi,, 2007. Pend. BHS.Inggris.