Aprianto, E. et al. 2020. Multimedia-Assisted Learning in a Flipped Classroom: A Case Study of Autonomous Learning on EFL University Students. International Journal of Emerging Technologies in Learning (iJET). 15, 24 (Dec. 2020), pp. 114–127. DOI:https://doi.org/10.3991/ijet.v15i24.14017.