JPPPF, Editor. Front Matter JPPPF Volume 5 Issue 1, July 2019. Jurnal Penelitian & Pengembangan Pendidikan Fisika, [S. l.], v. 5, n. 1, 2019. DOI: 10.21009/1.05100. Disponível em: https://journal.unj.ac.id/unj/index.php/jpppf/article/view/12282. Acesso em: 22 nov. 2024.