S. Hartati, R. B.A, B. R.H, and O. Cahyono, “The Effect of Auxin and Cytokinin on Black Orchid Hybrid (Coelogyne pandurata Lindley) in Vitro”, Int. J. Adv. Sci. Eng. Inf. Technol., vol. 12, no. 3, pp. 981–986, May 2022.