Sayadi, Ahmad Reza, Ali Lashgari, Mohammad Majid Fouladgar, and Miroslaw J. Skibniewski. “Estimating Capital and Operational Costs of Backhoe Shovels”. Journal of Civil Engineering and Management 18, no. 3 (June 29, 2012): 378-385. Accessed November 15, 2024. https://tede.vgtu.lt/index.php/JCEM/article/view/4461.