I.Raghuram, G.Jaya Surya, P.Joseph, Ch.Vijaya Krishna Rao, and B.Susmitha. “Fabrication of Soccer and Cricket Ball Launching Machine”. International Journal of Engineering and Management Research, vol. 13, no. 2, Apr. 2023, pp. 40-45, doi:10.31033/ijemr.13.2.5.