Gaya APA

Setiyadi, A. et al (2018). Teaching Language Skills : Preparing Materials and Selecting Techniques (Ed.1). Yogyakarta: Graha Ilmu.

Gaya MLA

Setiyadi, Ag.Bambang. et al. "Teaching Language Skills : Preparing Materials and Selecting Techniques". Ed.1 Yogyakarta: Graha Ilmu, 2018. Text.