IMPROVEMENT IN HARDNESS AND CORROSION RESISTANCE OF STEEL THROUGH RED MUD COATING. ASEAN Engineering Journal, [S. l.], v. 1, n. 4, p. 55–65, 2011. DOI: 10.11113/aej.v1.15315. Disponível em: https://journals.utm.my/aej/article/view/15315.. Acesso em: 6 apr. 2025.