SIMBALA, M. S.; KAUNANG, D. F. .; PAKPAHAN, R. N. . PENERAPAN MODEL PROBLEM BASED LEARNING DALAM PEMBELAJARAN MATEMATIKA MATERI PELUANG DI SMKN 2 TONDANO. De Fermat : Jurnal Pendidikan Matematika, [S. l.], v. 8, n. 2, p. 520–527, 2025. DOI: 10.36277/defermat.v8i2.2314. Disponível em: https://jurnal.pmat.uniba-bpn.ac.id/index.php/DEFERMAT/article/view/2314. Acesso em: 29 may. 2026.