“Effect of varying process parameters on surface roughness in AWJ machine” Using Analysis of Variance (ANOVA). International Journal of Advance Engineering and Research Development (IJAERD), [S. l.], v. 4, n. 3, p. 12–18, 2017. Disponível em: https://www.ijaerd.org/index.php/IJAERD/article/view/1945. Acesso em: 6 aug. 2025.