SAMSURA, D. A. T. R. .; BUTARBUTAR, E. G.; HERMANTO, T. . Analysis of Production Efficiency and Cutting Quality of Plastic Ring Cup Machine. IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA), [S. l.], v. 4, n. 2, p. 231–237, 2025. DOI: 10.56862/irajtma.v4i2.144. Disponível em: http://e-journals.irapublishing.com/index.php/IRAJTMA/article/view/144. Acesso em: 30 sep. 2025.