Abdullah, Nor Adibah. “Mathematics Teachers’ Conceptual Knowledge of Algebra: A Literature Review Pengetahuan Konseptual Algebra Guru Matematik: Satu Kajian Literatur”. Sains Humanika 12, no. 1 (December 31, 2019). Accessed January 6, 2026. https://sainshumanika.utm.my/index.php/sainshumanika/article/view/1048.