Echávez-Badel, Rodrigo, and James S. Beaver. “RESISTANCE AND SUSCEPTIBILITY OF BEANS, PHASEOLUS VULGARIS L., TO ASHY STEM BLIGHT, MACROPHOMINA PHASEOLINA (TASSI) GOID”. The Journal of Agriculture of the University of Puerto Rico 71, no. 4 (October 1, 1987): 403–405. Accessed December 22, 2024. https://revistas.upr.edu/index.php/jaupr/article/view/6988.