Oktaviyanthi, Rina, Ria Noviana Agus, and Khotimah. “Exploring the Link Between Cognitive Load and Brain Activity During Calculus Learning through Electroencephalogram (EEG): Insights from Visualization and Cluster Analysis”. Journal on Mathematics Education 15, no. 4 (December 9, 2024): 1383–1408. Accessed April 3, 2025. http://jme.ejournal.unsri.ac.id/index.php/jme/article/view/3017.