Nizami AW, Ibupoto MH. The Influence Of Self-Confidence On Mathematical Problem Solving Ability Of Senior High School in Indonesia. Tematik [Internet]. 2024 Aug. 21 [cited 2025 Jun. 1];2(1):11-7. Available from: https://ejournal.unzah.ac.id/index.php/jkpm/article/view/1695