Ferwerda, Feiko H. “Clonal Propagation of Galanga [Languas Galanga (L.) Stuntz] through Tissue Culture”. The Journal of Agriculture of the University of Puerto Rico 78, no. 3-4 (October 1, 1994): 147–152. Accessed September 26, 2022. https://revistas.upr.edu/index.php/jaupr/article/view/4283.