Guarda, Patricia Martins, et al. “OVERVIEW OF THE USE OF AGROCHEMICALS IN PINEAPPLE CULTURE IN THE STATE OF TOCANTINS AND POSSIBLE CONTAMINATION PROBLEMS”. DESAFIOS - Revista Interdisciplinar Da Universidade Federal Do Tocantins, vol. 3, no. Especial, Feb. 2017, pp. 70-79, doi:10.20873/uft.2359-3652.2016v3nespp70.