ALMALIKI, S. A. .; HIMOUD, M. S. .; MUHSIN, S. J. . Mathematical Model for Evaluating Slippage of Tractor Under Various Field Conditions. Basrah J. Agric. Sci., [S. l.], v. 34, n. 1, p. 49–59, 2021. DOI: 10.37077/25200860.2021.34.1.05. Disponível em: https://bjas.bajas.edu.iq/index.php/bjas/article/view/322. Acesso em: 14 may. 2021.