ISTIQLALIYAH, H.; AKBAR, A. ILMU LOGAM. Universitas Nusantara PGRI Kediri, [S. l.], p. 1–48, 2022. DOI: 10.29407/punp.vi.30. Disponível em: https://penerbit.unpkediri.ac.id/index.php/unp/article/view/30. Acesso em: 15 may. 2024.