GRYGORENKO Олег, and PIATNYTSKA Галина. 2010. “ew pproaches to the etermination of roducts ompetitiveness in the estaurant rade nterprises”. NTERNATIONAL CIENTIFIC-RACTICAL OURNAL OMMODITIES ND ARKETS 9 (1):98-106. https://journals.knute.edu.ua/commodities-and-markets/article/view/1531.