JPPPF, Editor. “Front Matter JPPPF Volume 6 Issue 2, December 2020”. Jurnal Penelitian & Pengembangan Pendidikan Fisika 6, no. 2 (December 31, 2020). Accessed March 28, 2024. https://journal.unj.ac.id/unj/index.php/jpppf/article/view/18717.