Influence of Periwinkle Shell addition on Mechanical Properties of Gray Cast Iron. International Journal of Multidisciplinary and Current Research, [S. l.], v. 2, n. 6, p. 1116–1118, 2014. DOI: 10.14741/. Disponível em: https://ijmcr.com/index.php/ijmcr/article/view/02.06.04. Acesso em: 25 may. 2026.