Julia, Rida, and Nia Kania. “Boosting Students’ Mathematical Self-Confidence With Guided Discovery Learning and Geogebra Assistance”. Plusminus: Jurnal Pendidikan Matematika 4, no. 2 (July 30, 2024): 255–268. Accessed August 2, 2025. https://journal.institutpendidikan.ac.id/index.php/plusminus/article/view/1495.