Blanco–Macías, Fidel, Rafael Magallanes–Quintanar, Rigoberto E. Vázquez–Alvarado, Santiago de J. Méndez–Gallegos, Enrique Troyo–Diéguez, Clemente Gallegos-Vázquez, and Ricardo D. Valdez–Cepeda. 2011. “Opuntia ficus–indica (L.) Mill. Yield Depends on Nutrients and Nutrient Ratios”. Journal of the Professional Association for Cactus Development 13 (January):1-9. https://doi.org/10.56890/jpacd.v13i.84.