1. Begum, A. A., M. Tamaki, S. Kato, T. Sawada and K. Kawamura. 1993. Somatic embryogenesis in Cymbidium through in vitro culture of inner tissue of protocorm like bodies (PLB). J. Japan Soc. Hort. Sci. 62 (Suppl. 2) : 520-521. (In Japanese).
2. Bilton R. 1980. Modern Cymbidium breeding. p. 145-148. In : M. R. S. Kashemsanta (ed.). Proceedings of the 9 th World Orchid Conference. Amarin Press, Bangkok.
3. Champagnat, M., G. Morel, P. Chabut and A. M. Cognet. 1966. Recherches morphologiques et histologiques sur la multiplication vegetative de quelques Orchidees du genre Cymbidium Rev. Gen. Bot. 73 : 706-746.
4. Fonnesbech, M. 1972. Growth hormones and propagation of Cymbidium in vitro. Physiol. Plant. 27 : 310-316.
5. Gu, Z., P. C. Higaki, M. M. Nishida, J. Arditti and L. P. Nyman. 1987. The effects of benzyladenine, 2,4-dichlorophenoxyacetic acid, and indole-acetic acid on shoot-tip cultures of Cymbidium. Lindleyana 2 : 88-90.