Gaya APA

Setiyadi, A, B. 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.