Hartati L, Adawiyah R. Analysis of Class VII Students’ Mathematical Problem-Solving Abilities on Triangles and Quadrilaterals. Universitas Jambi [Internet]. 2023 Dec. 31 [cited 2025 Mar. 28];13(3):295-307. Available from: https://mail.online-journal.unja.ac.id/edumatica/article/view/21090