R. Valdez-Nuñez, J. Rojas-García, y W. Ríos-Ruiz, «Microbiological indicators of tropical soils quality in ecosystems of the north-east area of Peru», Sci. agropecu, vol. 10, n.º 2, pp. 217–227, jul. 2019, doi: 10.17268/sci.agropecu.2019.02.07.