Valdez-Nuñez, Renzo, José Rojas-García, and Winston Ríos-Ruiz. 2019. “Microbiological Indicators of Tropical Soils Quality in Ecosystems of the North-East Area of Peru”. Scientia Agropecuaria 10 (2): 217-27. https://doi.org/10.17268/sci.agropecu.2019.02.07.