Savitri, Kadek, Muh Rizal, and Linawati Linawati. “Improving Student Learning Outcomes in Quadratic Equation through Problem Based Learning Model”. Media Eksakta 17, no. 1 (May 31, 2021): 8-15. Accessed August 17, 2025. https://jurnalfkipuntad.com/index.php/jme/article/view/813.