A. Begum, M. Tamaki and S. Kako, “Formation of Protocorm-like-bodies (PLB) and shoot development through in vitro culture of outer tissue of Cymbidium PLB,” J. Japan.Soc. Hort. Sci, Vol. 63, No. 3, 1994, pp.663-673
 J. T. Chen, C. Chang and W. C. Chang, “Direct somatic embryogenesis on leaf explants of Oncidium Gower Ramsey and subsequent plant regeneration,” Plant Cell Report,. Vol. 19, No. 2, December 1999, pp. 143-149.
 J. T. Chen and W. C. Chang, “Effects of auxins and cytokinins on direct somatic embryogenesis on leaf explants of Oncidium ‘Gower Ramsey,” Plant Growth Regulation, Vol. 34, No. 2, June 2001, pp. 229-232.
 S. Fiore, F. D. Pasquale, F. Carimi and M. Sajeva, “Effect of 2,4-D and 4-CPPU on somatic embryogenesis from stigma and style transverse thin cell layers of Citrus,” Plant Cell Tiss Organ Cult, Vol. 68, No. 1, January 2002, pp. 57-63
 G. Gambino, P. Ruffa, R, Vallania and I. Gribaudo, “Somatic embryogenesis from whole flowers, anthers and ovaries of grapevine (Vitis spp),” Plant Cell Tiss Organ Cult, Vol. 90, No. 1, January 2007, pp. 79-83.
 L. V. T. Huana, T. Takamura and M. Tanaka, “Callus formation and plant regeneration from callus through somatic embryo structures in Cymbidium orchid,” Plant Science, Vol. 166, No. 6, June 2004, pp. 1443-1449.
 H. L. Kuo, J. T. Chen and W. C. Chang, “Efficient plant regeneration through direct somatic embryogenesis from leaf explants of Phalaenopsis “Little Steve”,” In Vitro Cell. Dev. Biol.—Plan,. Vol. 41, No. 4, July 2005, pp. 453-456.
 S. Y. Motoike, E. S. Saraiva, M. C. Ventrella, C. V. Silva and L. C. C Saloma?o, “Somatic embryogenesis of Myrciaria aureana (Brazilian grape tree),” Plant Cell Tiss Organ Cult, Vol. 89, No. 1, April 2007, pp.75-81.
 J. Roy and N. Banerjee, “Induction of callus and plant regeneration from shoot tip explants of Dendrobium fimbriatum Lindl. var. oculatum Hk.f,” Scientia Horticulturae, Vol. 97, No. 3, February 2003, pp. 333–340.
 J. F. Wu, J. T. Chen and W. C. Chang, “Effects of auxins and cytokinins on embryo formation from root-derived callus of Oncidium ‘Gower Ramsey,” Plant Cell, Tiss Organ Cult, Vol. 77, No. 1, April 2004, pp. 107-109.