“Optimization of Friction Stir Welding Parameters of Al 6061 and Al 7075 Using GRA”, JUBES, vol. 26, no. 5, pp. 147 – 156, Mar. 2018, Accessed: Apr. 19, 2025. [Online]. Available: https://journalofbabylon.com/index.php/JUBES/article/view/1048