Waruwu, Nove Susanti, Rita Destini, Dedy Juliandri, and Firmansyah Firmansyah. “Model Pembelajaran Problem Based Learning (PBL) Terhadap Kemampuan Berpikir Kritis Matematis”. Media Pendidikan Matematika 13, no. 1 (June 30, 2025): 454–463. Accessed August 15, 2025. https://e-journal3.undikma.ac.id/index.php/jmpm/article/view/15745.