BARBOSA, L. D. de S., and J. G. de C. F. MACHADO. “USE OF PERSONAL PROTECTIVE EQUIPMENT: A COMPARISON OF AGROCHEMICALS INDUSTRIES PROMOTION PROGRAMS”. Revista Brasileira De Engenharia De Biossistemas, vol. 4, no. 3, Nov. 2010, pp. 215-22, doi:10.18011/bioeng2010v4n3p215-222.