JPPPF, Editor. “Back Matter JPPPF Volume 5 Issue 2, December 2019”. Jurnal Penelitian & Pengembangan Pendidikan Fisika 5, no. 2 (December 31, 2019). Accessed April 20, 2024. https://journal.unj.ac.id/unj/index.php/jpppf/article/view/13919.