DELA PUSPITA; HIDAYAT; DWI NOVITA SARI; ASNARNI LUBIS. The Effect of the Problem-Based Learning Model on the Mathematical Creative Thinking Ability of Seventh-Grade Students of Private Middle School Karya Pembangunan Deli Tua. Journal on Math and Science Educational Technology, [S. l.], v. 2, n. 1, 2026. Disponível em: https://eduresearch.web.id/index.php/jmset/article/view/101. Acesso em: 31 aug. 2026.