Fatimah, D., Mairing, J.P. dan Wahyuningrum, E. 2023. The effect of problem-based learning on mathematics problem solving ability and self-regulated learning. Math Didactic: Jurnal Pendidikan Matematika. 9, 1 (Apr 2023), 173-184. DOI:https://doi.org/10.33654/math.v9i1.2107.