Awang, N., M. Fauadi, Z. Abdullah, S. Akmal, N. Anuar, A. Noor, S. Idris, and M. Nordin. “CLASSIFICATION OF WELD BEAD DEFECTS BASED ON IMAGE SEGMENTATION METHOD”. Journal of Advanced Manufacturing Technology (JAMT), vol. 12, no. 1(4), Dec. 2018, pp. 51-60, https://ojsdemo.utem.edu.my/jamt/article/view/4897.