Dayem, Dayem, et al. “Secondary Students’ Engagement in Jigsaw Method-Asissted Vocabulary Learning”. INTERACTION: Jurnal Pendidikan Bahasa, vol. 10, no. 1, May 2023, pp. 1-17, https://e-journal.unimudasorong.ac.id/index.php/interactionjournal/article/view/2431.