Escudero, Jaime, et al. “YIELD AND TOLERANCE OF BELL PEPPER (CAPSICUM ANNUUM L.) CULTIVARS TO POTATO VIRUS Y ISOLATE FROM PUERTO RICO”. The Journal of Agriculture of the University of Puerto Rico, vol. 71, no. 3, July 1987, pp. 337-40, doi:10.46429/jaupr.v71i3.6978.