Sahil Bhasme, Shubham Wadbudhe, Bharat Bagde, Aditya Thakre, P. P. D. K. R. I. K. A. S. “SIMPLIFIED CORE HITTING MACHINE AND INNER THIGH STRENGTHENING MACHINE”. Design Engineering, July 2021, pp. 1347-53, http://www.thedesignengineering.com/index.php/DE/article/view/2582.