Khalida, A. et al. 2019. Callus Induction of Aerides odorata Lour. by Adding 2,4 Dichlorophenoxyacetic Acid (2,4-D). Jurnal Biologi UNAND. 7, 2 (Nov. 2019), 109–117. DOI:https://doi.org/10.25077/jbioua.7.2.109-117.2019.