Yegorova-Gudkova, T., Zvirkov, O. and Khostash, O. 2021. Food security as an invariant of the economic security system: mixological approach and innovative design of sustainability properties. Bulletin of Sumy National Agrarian University. 2 (88) (Jun. 2021), 9-13. DOI:https://doi.org/10.32845/bsnau.2021.2.2.