Roda’i, N. I. P. A. P., A. Setyawan, and W. N. Putra. “Improving Cognitive Learning Outcomes in Mathematical Problem Solving Through the Problem-Based Learning (PBL) Model for Grade 3 Students at SDN Baddurih”. Journal of Action Research in Education, vol. 3, no. 2, Oct. 2025, pp. 59-72, doi:10.52620/jare.v3i2.142.