Syafitri, Annisa Tiara, et al. “Encouraging High School Student’s Creative Thinking in Improving Speaking Skilll”. INTERACTION: Jurnal Pendidikan Bahasa, vol. 9, no. 1, July 2022, pp. 224-36, https://e-journal.unimudasorong.ac.id/index.php/interactionjournal/article/view/2454.