Oviedo Burbano, Rosa Liliana, et al. “Characterization of Causal Agent a Disturbance in Evergreen Bean (Phaseolus Polyanthus Greenman) in Nariño and Putumayo”. Revista De Ciencias Agrícolas, vol. 27, no. 1, Jan. 2010, pp. 93-103, https://revistas.udenar.edu.co/index.php/rfacia/article/view/52.