Dwijayanti, Anak Agung Sagung Sinta, and I Wayan Wiarta. “Problem Based Learning Using Open Ended Questions Improves Students’ Mathematical Critical Thinking Ability in Elementary Schools”. Thinking Skills and Creativity Journal 7, no. 1 (July 10, 2024): 167–174. Accessed December 20, 2024. https://ejournal.undiksha.ac.id./index.php/TSCJ/article/view/78033.