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 K. S. Prasad, C. S. Rao and D. N. Rao, “Optimizing Pulsed Current Micro Plasma Arc Welding Parameters to Maximize Ultimate Tensile Strength of Inconel 625 Nickel Alloy Using Response Surface Method,” Interna- tional Journal of Engineering, Science and Technology, Vol. 3, No. 6, 2011, pp. 226-236.
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 T. S. kumar, V. Balasubramanian, S. Babu and M. Y. Sanavullah, “Effect of Pulsed Current GTA Welding Pa- rameters on the Fusion Zone Microstructure of AA 6061 Aluminium Alloy, Metal and Materials International, Vol. 13, No. 4, 2007, pp. 345-351.
 N. Karunakaran and V. Balasubramanian, “Effect of Pulsed Current on Temperature Distribution, Weld Bead Profiles and Characteristics of Gas Tungsten Arc Welede Aluminium Alloy Joints,” Transactions of Nonferrous Metals Society of China, Vol. 21, No. 2, 2011, pp. 278- 286. doi:10.1016/S1003-6326(11)60710-3
 G. Padmanaban and V. Balasubramanian, “Influences of Pulsed Current Parameters on Mechanical and Metallurgical Properties of Gas Tungsten Arc Welede AZ31B Magnesium Alloy,” Metals and Materials International, Vol. 17, No. 4, 2011, pp. 679-687. doi:10.1007/s12540-011-0826-4