UMARU, M. .; DALHATU, M. .; BELLO, A. .; NAWAWI, H. . Animal traction as source of farm power in rural areas of Sokoto state, Nigeria. Health, Safety and Environment , [S. l.], v. 1, n. 1, p. 23-28, 2013. Disponível em: http://sjournals.com/index.php/hse/article/view/406. Acesso em: 27 nov. 2024.