Liu, Feng-juan. “A Quantitative Evaluation Model of Interactive Whiteboard Classroom Based on K-Means Algorithm”. International Journal of Emerging Technologies in Learning (iJET) 13, no. 11 (November 9, 2018): pp. 89–101. Accessed November 22, 2024. https://online-journals.org/index.php/i-jet/article/view/9603.