Gandhi, A., D. R. Vaishya, and A. Gupta. “Usage of Additive Manufacturing Techniques in Producing Orthotic Insole”. Journal of Advanced Research in Mechanical Engineering and Technology, vol. 4, no. 4, Jan. 2019, pp. 18-22, https://adrjournalshouse.com/index.php/mechanical-engg-technology/article/view/262.