Listiana, W., Pasaribu, L. H. dan Julyanti, E. (2024) “The influence of the problem-solving learning model on students’ ability to understand concepts in solving mathematics story problems material systems of linear equations with two variables”, Math Didactic: Jurnal Pendidikan Matematika, 10(1), hlm. 25-35. doi: 10.33654/math.v10i1.2556.