Gaya APA

Purnama, A, R, W. (2015). Implementing STAD to improve students' grammar mastery at the seventh grade of Arunsat Vittaya school Kadunong Saiburi Pattani South Thailand . Kediri: STAIN KEDIRI.

Gaya MLA

Purnama, Ayu, Rizqi, Wahyu. "Implementing STAD to improve students' grammar mastery at the seventh grade of Arunsat Vittaya school Kadunong Saiburi Pattani South Thailand". Kediri: STAIN KEDIRI, 2015. Text.