KUMBHAR, S. V.; TAKALE, A. M.; BADIWALE, A. H.; GAWALI, A. D.; BHANASE, B. S. 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, [S. l.], v. 7, n. 2, p. 42–45, 2018. DOI: 10.51983/arme-2018.7.2.2449. Disponível em: https://ojs.trp.org.in/index.php/arme/article/view/2449. Acesso em: 5 may. 2024.