Budiono, Budiono, and Suwarsono Suwarsono. “Inspection on Railroads Quality by Using Image Processing Method”. Journal of Energy, Mechanical, Material, and Manufacturing Engineering 4, no. 2 (November 30, 2019): 111–118. Accessed August 6, 2024. https://ejournal.umm.ac.id/index.php/JEMMME/article/view/9514.