Gaya APA
Setiyadi, B. et al (2018).
(E-BOOK) Teaching Language Skills; Preparing Materials and Selecting Techniques .
Yogyakarta:
Graha Ilmu.
Gaya MLA
Setiyadi, Bambang. et al.
"(E-BOOK) Teaching Language Skills; Preparing Materials and Selecting Techniques".
Yogyakarta:
Graha Ilmu,
2018.
Computer File.