Ribeiro, M. de N.O. et al. 2009. In vitro development of calla lily: effect of sucrose and gibberellic acid concentrations. Semina: Ciências Agrárias. 30, 3 (Oct. 2009), 575–580. DOI:https://doi.org/10.5433/1679-0359.2009v30n3p575.