Gustini, Tri, and Yanry Budianingsih. “Penerapan Model Problem Based Learning (PBL) Untuk Meningkatkan Kemampuan Representasi Matematis Siswa”. Prosiding Seminar Nasional Pendidikan Universitas Subang (SENDINUSA) 3, no. 1 (June 14, 2022): 160–175. Accessed May 2, 2024. https://ejournal.unsub.ac.id/index.php/sendinusa/article/view/1303.