García-González, Dolores Adilene, María Del Socorro Santos-Diaz, Juan Pedro Flores-Margez, and Pedro Osuna-Ávila. 2020. “Influence of Ca2+, PH, Agar and Plant Growth Regulators in the in Vitro Propagation of Echinocactus Parryi (Engelm)”. REVISTA TERRA LATINOAMERICANA 38 (3):489-98. https://doi.org/10.28940/terra.v38i3.734.