JPFA, E. Front Cover JPFA Vol 9 No 1 June 2019. Jurnal Penelitian Fisika dan Aplikasinya (JPFA), [S. l.], v. 9, n. 1, p. i, 2019. DOI: 10.26740/jpfa.v9n1.pi. Disponível em: https://journal.unesa.ac.id/index.php/jpfa/article/view/5761. Acesso em: 4 jul. 2024.