Utami, Nopi Tri, and Wahyu Setyaningrum. “Application of Problem-Based Learning Based Set Mobile Game Oriented to Motivation, Interest, and Logical-Mathematical Thinking”. Journal of Mathematics Instruction, Social Research and Opinion 4, no. 4 (December 31, 2025): 1551–1564. Accessed August 16, 2026. https://journal-gehu.com/index.php/misro/article/view/980.