Kartika M, Rahmawati WT, Prihatini S. The Effect of Quizlet On Students’ Achievement in Vocabulary Mastery of Grade X at SMK PAB Helvetia Medan Academic Year 2023 – 2024. jptam [Internet]. 2024 May 22 [cited 2024 Dec. 27];8(2):19141-9. Available from: http://jptam.org/index.php/jptam/article/view/15192