LaPierre, L. M. “Vegetative Propagation of <i>Cecropia obtusifolia</i≫ (Cecropiaceae)”. Revista De Biología Tropical, vol. 49, no. 3-4, Dec. 2001, pp. 973–976, https://revistas.ucr.ac.cr/index.php/rbt/article/view/18045.