Devi, Resi Artika, et al. “Calculation Ability Mathematics : Penerapan Model Project Based Lerning Di Kelas IV MIS Assu’udiyah Bungo”. 2025. Master of Action Research in Mathematics Classroom, vol. 1, no. 1, Dec. 2025, pp. 41-50, https://doi.org/10.63461/math-action.v11.170.