Yuniarti, Nacalia, Firdausi Firdausi, and Gelar Dwirahayu. “Implementing Bruner’s Theory in Teaching Angles on a Circle to Enhance Problem-Solving Skills”. Journal of Mathematics Instruction, Social Research and Opinion 4, no. 4 (October 8, 2025): 1051–1064. Accessed June 4, 2026. https://journal-gehu.com/index.php/misro/article/view/698.