Rahmah, Syifaur, et al. “Proliferation of Protocorm-Like Bodies of Dendrobium Mannii and Dendrobium Mirbelianum in Chitosan-Containing Media In Vitro”. Journal of Tropical Crop Science, vol. 2, no. 3, Mar. 2016, pp. 22-28, doi:10.29244/jtcs.2.3.22-28.