& ET AL., Taha. ESTIMATING ECONOMICAL COSTS FOR OPERATING AGRICULTURAL MACHINES AND EQUIPMENT DURING PLOWING OPERATIONS. IRAQI JOURNAL OF AGRICULTURAL SCIENCES, [S. l.], v. 47, n. 1, 2016. DOI: 10.36103/ijas.v47i1.642. Disponível em: https://jcoagri.uobaghdad.edu.iq/index.php/intro/article/view/642.. Acesso em: 25 nov. 2024.