Suryo, Sumar Hadi, et al. “Stress Analysis on the ‘C’ 390F Excavator Link Bucket Using Finite Element Method”. International Journal of Sciences: Basic and Applied Research (IJSBAR), vol. 53, no. 1, July 2020, pp. 43-50, https://www.gssrr.org/JournalOfBasicAndApplied/article/view/11428.