Zharkenov, Damir, József Pekli, Olga Kirichenko, Katalin Zsuga, and Sadykulov Тoleuhkan. 2016. “Cage Cultivation of Bester in East Kazakhstan”. COLUMELLA – Journal of Agricultural and Environmental Sciences 3 (1): 55-63. https://doi.org/10.18380/SZIE.COLUM.2016.3.1.55.