1. Blazich, F.A. (1988). Chemicals and formulations used to promote adventitious rooting. In: Adventitious Root Formation in Cuttings. (Eds. by T.D. Davis; B.E. Haissig & N. Sankhla), Dioscorides Press, Portland, p.132-149.
2. Davis, T.D.; Haissig, B.E. and Sankhla, N. (1988). Adventitious Root Formation in Cuttings. Dioscorides Press, Portland, pp. 315.
3. Donoho, C.W.; Mitchell, A.E. and Sell, H.N. (1962). Enzymatic destruction of 14C labelled indole acetic acid and naphthalene acetic acid by developing Apple and Peach seeds. Proc. Am. Soc. Hort. Sci., 80: 43-49.
4. Hackett, W.P. (1970). The influence of auxin, catechol, and metabolic tissue extracts on root initiation in aseptically cultured shoot apices of the juvenile and adult forms of Hedera helix. J. Am. Soc. Hort. Sci., 95: 398 402.
5. Hartmann, H.T. and Kester, D.E. (1983). Plant Propagation: Principals and Practices. 4th edition. Prentice Hall, New Jersey, 727 p.