Viera, William, Michelle Noboa, Johana Bermeo, Francisco Báez, and Trevor Jackson. 2018. “Quality Parametres of Four Types of Formulations Based on Trichoderma Asperellum and Purpuricillium Lilacinum”. Enfoque UTE 9 (4):pp. 145 -153. https://doi.org/10.29019/enfoqueute.v9n4.348.