“Pengaruh Model Pembelajaran Problem Solving Terhadap Kemampuan Pemecahan Masalah Matematika Siswa SMK”, J. Song. Math, vol. 2, no. 1, pp. 35–42, Jun. 2019, Accessed: Aug. 26, 2026. [Online]. Available: https://jurnal.unikastpaulus.ac.id/index.php/JSM/article/view/1718