PENERAPAN MODEL PROBLEM BASED LEARNING DAN MODEL PEMBELAJARAN LANGSUNG PADA PEMBELAJARAN MATEMATIKA OPERASI MATRIKS DI SMK N 1 TOULUAAN. jsoscied [Internet]. 2024 Nov. 30 [cited 2026 Apr. 18];7(2):665-72. Available from: https://jurnal.poltekstpaul.ac.id/index.php/jsoscied/article/view/874