Gutiérrez Cruz, Isidro, Edgar Rivera Carrión, and Gloria Roldán Reascos. 2016. “Quality Analysis of Effluents from Biodigesters in Lodges Located in the Cuyabeno Wildlife Reserve”. Enfoque UTE 7 (3):pp. 57 - 69. https://doi.org/10.29019/enfoqueute.v7n3.105.