SYAHPUTRA, H.; MUSTIKA, D. Validitas Bahan E-Module Berbasis Android pada Operasi Count Fractional Kelas V SD. IJoIS: Indonesian Journal of Islamic Studies, [S. l.], v. 3, n. 2, p. 163-171, 2022. DOI: 10.59525/ijois.v3i2.114. Disponível em: https://journal.civiliza.org/index.php/ijois/article/view/114. Acesso em: 28 sep. 2025.