Purwati, Gusti Ayu Made, Dewa Nyoman Sudana, and Ni Wayan Arini. “Mathematics Learning With Guided Inquiry Model Open-Oriented Problem Solving Improves Student Learning Outcomes”. International Journal of Elementary Education 4, no. 4 (March 1, 2021): 454–463. Accessed February 23, 2025. https://ejournal.undiksha.ac.id/index.php/IJEE/article/view/27198.