Sari DP. Profil Pemecahan Masalah Matematis Siswa SMK Materi Program Linear Menggunakan Model Problem Based Learning. JPMR [Internet]. 2021 Jul. 31 [cited 2024 May 2];6(2):27-39. Available from: https://ejournal.unib.ac.id/jpmr/article/view/16119