Nurdani, Nurdani, et al. “Mastery Learning As Learning Model to Meet the Passing Grade of Al-Qur’an Hadith Subject at Madrasah Ibtidaiyah Negeri 4 Padang Pariaman”. Firdaus Journal, vol. 1, no. 1, Dec. 2021, pp. 1-11, https://doi.org/10.37134/firdaus.vol1.1.1.2021.