Muttaqin, Anjar. “OPTIMIZING STUDENTS’ LOW FREQUENCY WORDS ACHIEVEMENT THROUGH IMPLEMENTING MODIFIED KEYWORD METHOD”. LET: Linguistics, Literature and English Teaching Journal 6, no. 1 (May 30, 2017). Accessed November 23, 2024. https://jurnal.uin-antasari.ac.id/index.php/let/article/view/1443.