JPFA, E. Front Cover JPFA Vol 7 No 2 December 2017. Jurnal Penelitian Fisika dan Aplikasinya (JPFA), [S. l.], v. 7, n. 2, p. i, 2017. DOI: 10.26740/jpfa.v7n2.pi. Disponível em: https://journal.unesa.ac.id/index.php/jpfa/article/view/2048. Acesso em: 8 may. 2024.