P. Vignesh, R. Ashok Kumar, M.Karthikeyan, R.Kavinkumar, K.Lathapriyan, and P.Manojkumar. 2018. “Experimental Design and Fabrication of a Portable Hydraulic Pipe Bending Machine”. International Journal of Intellectual Advancements and Research in Engineering Computations 6 (1):751-55. https://ijiarec.com/ijiarec/article/view/544.