“294. Penerapan Model Problem Based Learning Untuk Meningkatkan Kemampuan Representasi Matematis Siswa Kelas X Perhotelan 4 SMK Negeri 6 Semarang” 1, no. 1 (July 3, 2023): 2627–2638. Accessed August 11, 2026. https://conference.upgris.ac.id/index.php/psnppg/article/view/3997.