Luna-Rodríguez, Fátima del Carmen, Jaquelinne Guissel López-Mena, and Roberto Larios-González. 2013. “Cropping Systems in Coffee (Coffea Arabica L.), and Its Effect on Soil Fertility and Yield of Green Coffee Beans, Masatepe, Masaya”. La Calera 12 (18):29-36. https://doi.org/10.5377/calera.v12i18.1122.