KOBYLIN, Pavlo. THE SYSTEM OF PUBLIC TRADE SERVICE IN KHARKIV REGION: PROBLEMS AND DIRECTIONS OF IMPROVEMENT. Ekonomichna ta Sotsialna Geografiya, Kyiv, Ukraine, v. 77, p. 33–40, 2017. DOI: 10.17721/2413-7154/2017.77.33-40. Disponível em: https://www.bulletin-esgeograph.org.ua/esg/article/view/77-kobylin-33-40. Acesso em: 15 jul. 2026.