Kumbhar, S. V., Takale, A. M., Badiwale, A. H., Gawali, A. D., & Bhanase, B. S. (2018). Design and Development of Helical Compression Spring Stiffness Testing Machine for I.C. Engine Valves with Stepper Motor by Using Computer Control. Asian Review of Mechanical Engineering, 7(2), 42–45. https://doi.org/10.51983/arme-2018.7.2.2449