Shofa, Gaitsa Zahira, Ari Septian, and Rani Sugiarni. “Analysis of Students’ Mathematical Problem Solving Skills on Opportunity Material”. PRISMA 15, no. 1 (June 4, 2026): 21–33. Accessed June 4, 2026. https://jurnal.unsur.ac.id/index.php/prisma/article/view/5725.