Widiyawati, S., A. Muth’im, and N. Nasrullah. “TTHE CORRELATION BETWEEN STUDENTS’ MOTIVATION AND ENGLISH ACADEMIC ACHIEVEMENT”. LINGUA EDUCATIA, Vol. 2, no. 3, Jan. 2021, pp. 245-57, http://jtam.ulm.ac.id/index.php/gej/article/view/615.