Marpaung, Syafaruddin. “Teacher-Guided IFP Use in Smartphone-Restricted EFL Classrooms”. Proceedings of Annual Language, Literature and Culture International Conference 2026, no. 1 (Agustus 26, 2026). Diakses Oktober 29, 2026. https://conference.sastra.uisu.ac.id/index.php/alicio/article/view/27.