Leonard, Leonard, and Anisa Irena Putri. “Development of a Mathematics Learning Module Using a Problem-Based Learning Approach for 7th-Grade Junior High School Students”. Journal on Math and Science Educational Technology 1, no. 2 (March 4, 2026). Accessed March 16, 2026. https://eduresearch.web.id/index.php/jmset/article/view/77.