Gaya APA

Arif, M. (2013). Developing English Instructional Material Using Authentic Materials for First Grade of Senior High School . Tulungagung: STAIN Tulungagung.

Gaya MLA

Arif, Mohammad. "Developing English Instructional Material Using Authentic Materials for First Grade of Senior High School". Tulungagung: STAIN Tulungagung, 2013. Skripsi.