Budiarta, I Komang, and Made Hery Santosa. “TPS-Flipgrid: Transforming EFL Speaking Class in the 21st Century”. English Review: Journal of English Education 9, no. 1 (November 16, 2020): 13-20. Accessed June 22, 2025. https://journal.uniku.ac.id/index.php/ERJEE/article/view/3824.