Pratiwi NM, Indiati I, Sumarti. 294. Penerapan Model Problem Based Learning untuk Meningkatkan Kemampuan Representasi Matematis Siswa Kelas X Perhotelan 4 SMK Negeri 6 Semarang. psnppg [Internet]. 2023 Jul. 3 [cited 2025 Apr. 26];1(1):2627-38. Available from: https://conference.upgris.ac.id/index.php/psnppg/article/view/3997