1. Ağaoğlu, Y.S. (1999). Scientific and Applied Viticulture, Vol. 1. Grape Biology (Kavaklıdere Education Publications), pp.205.
2. Bilir, M. (2002). Effect of genotype and enviromental factors on spontaneous polyembryony in vinegrape (Vitis vinifera L. cvs.). M.Sc. thesis (Ankara University Natural and Applied Sciences, Deparment of Horticulture), pp.41.
3. Effect of some genetic and environmental factors on spontaneous polyembryony in grape (Vitis vinifera L.).;Bouquet;Vitis,1980
4. In ovulo embryo culture and seedling development of seeded and seedless grapes (Vitis vinifera L.).;Cain;Vitis,1983
5. The use of leaf GPI and IDH isozymes to examine the origin of polyembryony in cultured ovules of seedless grape.;Durham;Plant Cell Rep,1989