1. Bekavac, G., M. Stojaković, Dj. Jocković, Božana Purar, R. Popov, (1995): Path analysis of stay-green and grain yield of maize synthetic populations. Maize breeding, production and utilisation, 315–319, Zemun Polje.
2. Bhatt, G.M., 1973: Significance and path coefficient analysis in determining the nature of character association. Euphytica, 22: 338–343.
3. Craft-Brandner, S.J., F.E. Below, V.A. Wittenbach, J.E. Harper, R.H. Hageman, 1984: Differential senescence of maize hybrids following ear removal. II Selected leaf. Plant physiol., 47: 368–373.
4. Cochran, W.G., G.G. Cox, 1957 Experimental designs. John Willey & Suns, Inc. Canada.
5. Crosbie, T.M. 1982: Changes in physiological traits associated with long-term breeding efforts to improve grain yield of maize. In H.D. Loden and D. Wilkinson (ed.) Proc. 37th Ann. Corn and Sorghum Ind. Res. Conf, p. 206–223. Chicago, IL. 8–9 Dec, ASTA, Washington, DC.