1. 1. Blagytko E. M., Burmystrov V. A. Silver in medicine. Novosibirsk, Nauka-Centr Publ., 2004, 254 p. (in Russian)
2. 4. Brovarsky V. D., Bagriy I. G. Beekeeping and breeding. Kyiv, Urozhay, 1995, 224 p. (in Ukrainian)
3. Reproductive ability of queen bees in the conditions of the conditions of feeding bees with flour from soybeans native and transgenic varieties.;Fedoruk;The Animal Biology,2013
4. 7. Lebedev V. I., Bilash N. G. Biological of honey bees. Moscow, Agropromizdat, 1991, 239 p. (in Russian)
5. Copper transport.;Linder;Am J Clin Nutr,1998