SURVEY STUDY OF FARM TRACTOR MANAGEMENT: A CASE STUDY OF ZAMFARA STATE. Nigerian Journal of Technology, [S. l.], v. 32, n. 1, p. 123–128, 2013. DOI: 10.4314/njt.321.616. Disponível em: https://www.nijotech.com/index.php/nijotech/article/view/616. Acesso em: 16 apr. 2026.