Boonchouytan, W., J. Chatthong, and P. Muangjunburee. “Microstructural and mechanical properties of welded SSM356-T6 and SSM7075-T6 aluminum semi-solid sheets by friction stir welding”. Engineering and Applied Science Research, vol. 43, no. 4, Oct. 2016, pp. 189-95, https://ph01.tci-thaijo.org/index.php/easr/article/view/47861.