JPPPF, Editor. “Front Matter JPPPF Volume 6 Issue 1, June 2020”. Jurnal Penelitian & Pengembangan Pendidikan Fisika 6, no. 1 (June 30, 2020). Accessed April 26, 2024. https://journal.unj.ac.id/unj/index.php/jpppf/article/view/15921.