M. Maryati, B. Soegijono, M. Y. Masduky, and T. Tarmizi, “Effect of Tool Rotation Speed on Mechanical Properties and Microstructure as the Results of Friction Stir Welding Method on Aluminium 5083-7075”, ijp, vol. 27, no. 1, pp. 9 - 17, Jul. 2016.