TY JOUR TI DIGITAL TOOLS FOR PROMOTING CONFECTIONERY PRODUCTS OF DOMESTIC PRODUCERS ON INTERREGIONAL MARKETS KW sales system KW market model KW inter-regional markets KW confectionery products KW online trade KW marketplace KW promotion tool KW B2C KW B2B KW B2G JO Trade, service, food industry AU Berg, T.I. AU Belonogova, E.V. PY 2025 IS 5 PB Siberian Federal University