Nofriati, Nursa Fatri, Yusuf Hartono, and Somakim Somakim. “Learning Direct and Inverse Proportion Using Musi Tour”. International Journal on Emerging Mathematics Education 3, no. 2 (April 20, 2020): 139–151. Accessed November 24, 2024. https://journal.uad.ac.id/index.php/IJEME/article/view/13578.