Kholili, Achmad. “Investigating Factors Underlying Boredom in Learning English: The Case of Secondary School”. Al-Lisan: Jurnal Bahasa (e-Journal) 8, no. 1 (February 28, 2023): 13–32. Accessed July 3, 2024. https://journal.iaingorontalo.ac.id/index.php/al/article/view/3185.