E. Riswalastika, D. A. Susanto, and T. S. Suwarti, “Using Pop-Up Book in E-Learning to Improve Students Vocabulary Mastery Student”, edusia j. ilm. pendidik. asia, vol. 3, no. 1, pp. 15–27, Jan. 2023, doi: 10.53754/edusia.v3i1.184.