Astra, I Made, Petrus Tumijan, Kristina Uskenat, and Anderias Henukh. “The Development of STEM-Based Science Teaching Materials on Simple Electrical Circuit Materials”. Jurnal Penelitian & Pengembangan Pendidikan Fisika 9, no. 1 (April 17, 2023): 127 - 138. Accessed May 3, 2025. http://103.8.12.212:33180/unj/index.php/jpppf/article/view/32998.