CORRELATIONS BETWEEN FINANCIAL PERFORMANCE INDICATORS OF COMPANIES WITH CORE ACTIVITY IN THE ENERGY SECTOR AND RELATED INDUSTRIES, TRADED ON BUCHAREST STOCK EXCHANGE, AND THE BET-NG INDEX
Vìsnik. Ekonomìka/Vìsnik Kiïvsʹkogo nacìonalʹnogo unìversitetu ìmenì Tarasa Ševčenka. Serìâ Ekonomìka