Hernández Olivas, M.L. et al. 2014. Phenological behavior in three altitudinal ranges of species; Enterolobium cyclocarpum, Maclura tinctoria. Esteli, Nicaragua. Revista Científica Estelí. 11 (Nov. 2014), 81–90. DOI:https://doi.org/10.5377/farem.v0i11.1607.