Gaya APA
dkk, A, B, S. (2018).
Teaching Language Skills: Preparing Materials and Selecting Techniques (Ed. 1).
Yogyakarta:
Graha Ilmu.
Gaya MLA
dkk, Ag., Bambang, Setiyadi,.
"Teaching Language Skills: Preparing Materials and Selecting Techniques".
Ed. 1
Yogyakarta:
Graha Ilmu,
2018.
Text.