C. J. Ruiz-Fonseca and M. A. Jiménez-Campos, “BIOMASS PRODUCTION OF NACEDERO (<i>Trichanthera gigantea</i>) IN DIFFERENT STAGES OF SHADOW AND CUT FREQUENCIES IN THE RANCHO EBENEZER. NIQUINOHOMO, MASAYA. 2005”, La Calera, vol. 10, no. 14, pp. 31–38, Aug. 2010.