Kaluge, L., Yulianti, B. A. Fernandez, dan N. Prathiwi. “The Determinants of Active Instruction at Indonesian Elementary Schools As Perceived by Teachers”. International Conference on Elementary Education, Vol. 4, no. 1, April 2022, hlm. 373-85, https://proceedings2.upi.edu/index.php/icee/article/view/2009.