Bujang, D.O.A. and Rosli Ahmad (2024) “Effect of Square Head Tooltip and Joining Speed on Aluminium Alloy AA6061 in Friction Stir Welding”, Research Progress in Mechanical and Manufacturing Engineering, 5(1), pp. 283–288. Available at: https://publisher.uthm.edu.my/periodicals/index.php/rpmme/article/view/13483 (Accessed: 12 March 2026).