J. M. Al-Jaaf, K. K. Mohammad, and N. Y. Mahmood, “Designing an Integrated Systematic Excavator for Agricultural Land”, NUCEJ, vol. 13, no. 1, pp. 131–144, Mar. 2010, Accessed: Dec. 23, 2024. [Online]. Available: https://oldjournal.eng.nahrainuniv.edu.iq/index.php/main/article/view/586