Muhammad Kasffi Ramli, et al. “COMPARISON OF PROPULSION SHAFT STRAIGHTNESS USING NEW D.I.Y ARDUINO MEASUREMENT DEVICE WITH THE CONVENTIONAL DIAL INDICATOR”. Marine Frontier, vol. 12, no. 2, Nov. 2021, pp. 62-69, https://ejournal.unikl.edu.my/index.php/mf/article/view/425.