Hestu Wilujeng, Aristiawan, and Joel I. Alvarez. “Students’ Misconceptions in Algebraic Concepts: A Four-Tier Diagnostic Test Approach”. Jurnal Elemen 11, no. 1 (February 1, 2025): 120–132. Accessed February 2, 2025. https://e-journal.hamzanwadi.ac.id/index.php/jel/article/view/27604.