Mariwati, Kartika, and Louise M Saija. “The Effect of Junior High School Students Extrinsic Motivation towards Mathematical Understanding Ability”. Jurnal Padegogik 7, no. 2 (July 31, 2024): 97 - 103. Accessed October 12, 2024. https://jurnal.unai.edu/index.php/jpd/article/view/3433.