Darma, I Ketut, I Made Candiasa, I Wayan Sadia, and Nyoman Dantes. “Problem-Based Learning and Authentic Assessment on Conceptual Understanding and Ability to Solve Mathematical Problems: Among Students of Politeknik Negeri Bali”. International research journal of engineering, IT and scientific research 4, no. 4 (July 3, 2018): 7–16. Accessed November 13, 2024. https://sloap.org/journals/index.php/irjeis/article/view/254.