Hidayat, D.D., Punding, W. and ., S. 2022. Study of Students’ Mathematical Problem Solving Ability on the Material of Straight Line Equation in Class VIII SMP Negeri 6 Palangka Raya. Jurnal Pendidikan. 23, 1 (Jul. 2022), 48–58. DOI:https://doi.org/10.52850/jpn.v23i1.4878.