Mampouw, H. L., Yogani Indah Pawestri, and Tri Nova Hasti Yunianta. “Development of Flip PDF And Video Based E-Modules to Improve Mathematics Learning Outcomes”. Numerical: Jurnal Matematika Dan Pendidikan Matematika, vol. 7, no. 1, June 2023, pp. 211-22, doi:10.25217/numerical.v7i1.3296.