Nurcahyati, S. A., Haji, S., & Agustinsa, R. (2024). Developing student worksheets based on project-based learning to improve understanding of mathematical concepts for students at grade VIII of state junior high school 6 Seluma. Math Didactic: Jurnal Pendidikan Matematika, 10(1), 126-141. https://doi.org/10.33654/math.v10i1.2350