Alheta, S., Zayan, S., Mahmoud, T., & Gomaa, A. (2016). Optimization of Friction Stir Spot Welding Process Parameters for AA6061-T4 Aluminium Alloy Plates. American Scientific Research Journal for Engineering, Technology, and Sciences, 20(1), 244–253. Retrieved from https://asrjetsjournal.org/index.php/American_Scientific_Journal/article/view/1779