Daiva Sileikiene, Laima Cesoniene. "COMPARATIVE ANALYSIS OF PQP AND ECO-AGRICULTURAL HONEY AND BEE-KEEPING PRODUCTS FOR 2012-2014." SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 17th International Multidisciplinary Scientific GeoConference SGEM2017, Ecology, Economics, Education and Legislation, 2017, pp. 189-194. https://doi.org/10.5593/sgem2017/52/s20.025