Febrianti, Maria Dona Elsinta, et al. “The Effectiveness of Wordwall on Fourth-Grade Students’ Learning Outcomes in Fractional Materials at SDN 70 Singkawang”. Jurnal Gentala Pendidikan Dasar, vol. 10, no. 3, Nov. 2025, pp. 894-06, https://www.online-journal.unja.ac.id/gentala/article/view/47370.