Yamada, K. ., K. . Tomari, T. . Harada, and H. . Hamada. “Fracturre Toughness Evaluation of Adjacent Flow Weld Line by SENB Method”. Journal of Engineering, RMUTT, vol. 6, Dec. 2005, pp. 108-13, https://ph01.tci-thaijo.org/index.php/jermutt/article/view/242302.