Hanggara, Agie, and Endang Darsih. “A Study of teachers’ Pedagogical Content Knowledge in Kuningan, West Java”. International Journal of Engineering and Technology 8, no. 1.9 (January 26, 2019): 426–429. Accessed April 28, 2025. https://sciencepubco.com/index.php/IJET/article/view/26701.