Via Yustitia, Dian Kusmaharti, and Eldine Salsabila Putri. “Self-Directed Learning Based Teaching Module on Angle Material”. Jurnal Penelitian dan Pengembangan Pendidikan 8, no. 3 (October 25, 2024): 612–620. Accessed April 5, 2025. https://ejournal.undiksha.ac.id./index.php/JJL/article/view/62123.