Sulfiana Firman, et al. “The Effectiveness of Developing Problem-Solving Oriented Digital E-Modules on Theme 7: Events in Life for Grade V Elementary School”. Didaktika: Jurnal Kependidikan, vol. 13, no. 4 Nopember, Nov. 2024, pp. 4555-68, https://doi.org/10.58230/27454312.1045.