M.R. Rawal, R.R. Kolhapure, S.S. Sutar, and V.D. Shinde. 2016. “Optimization of Resistance Spot Welding of 304 Steel Using GRA”. International Journal of Computer Engineering in Research Trends 3 (9):492-99. https://www.ijcert.org/index.php/ijcert/article/view/793.