Japar, Irfan, et al. “Addressing Student Learning Gaps in Fractions: How Effective Is Synchronous Videoconferencing?”. Jurnal Pendidikan Matematika, vol. 16, no. 1, Oct. 2024, pp. 103-20, https://jpm.ejournal.unsri.ac.id/index.php/jpm/article/view/164.