SINAGA, S.; ASMI, D. Jurnal Teori dan Aplikasi Fisika, [S. l.], v. 3, n. 1, 2015. DOI: 10.23960/jtaf.v3i1.69. Disponível em: https://jtaf.fmipa.unila.ac.id/index.php/jtaf/article/view/69. Acesso em: 28 oct. 2025.