Melo, H. M. de, Nagaoka, A. K., & Vieira, F. C. (2012). Influence of agricultural subsidies and new technologies trends in the Brazilian wheeled tractors commercialization. Revista De Ciências Agroveterinárias, 11(1), 70–76. Retrieved from https://periodicos.udesc.br/index.php/agroveterinaria/article/view/5239