Jamaleswara Kumar, P., A. Siva Sai Tarun, M. Gowtham, P. Thamma Rao, and G. Yashwanth. 2017. “Design and Fabrication of Portable Laser Cutting and Engraving Machine”. International Journal of Engineering & Technology 7 (1.1): 570-73. https://doi.org/10.14419/ijet.v7i1.1.10170.