Hanggara, Agie, and Endang Darsih. “A Study of teachers’ Pedagogical Content Knowledge in Kuningan, West Java”. International Journal of Engineering & Technology 8, no. 1.9 (January 26, 2019): 426–429. Accessed May 4, 2024. https://www.sciencepubco.com/index.php/ijet/article/view/26701.