Effendi, Imelda, Samsul Amri, and Melda Yeni. 2019. “A CORRELATION STUDY BETWEEN STUDENTS’ PERCEPTION ON TEACHERS’ PERFORMANCE IN TEACHING ENGLISH AND THEIR ACHIEVEMENT”. J-Shelves of Indragiri (JSI) 1 (1):13-26. https://doi.org/10.32520/jsi.v1i1.798.