Velásquez-Valle Rodolfo, and Reveles-Hernández Manuel. “IRIS YELLOW SPOT VIRUS DETECTION IN THE ONION CULTIVATION OF ZACATECAS, MEXICO”. Revista Mexicana De Ciencias Agrícolas, vol. 2, no. 6, Sept. 2018, pp. 971-8, https://doi.org/10.29312/remexca.v2i6.1598.