Enríquez Estrella, Miguel Angel. “Design of a Biodigester of Animal Excreta in the El Calvario Community, Veracruz Parish, Pastaza Canton, Ecuador”. Revista Tecnológica - ESPOL, vol. 34, no. 4, Dec. 2022, pp. 28-43, https://doi.org/10.37815/rte.v34n4.928.