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Kulova I. Branding – a key advantage for distinguishing the identity of Bulgarian wine among the competitive world wine market // International scientific journal "Internauka". Series: "Economic Sciences". — 2021. — №8. https://doi.org/10.25313/2520-2294-2021-8-7497
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Kulova I. Contemporary trends in global business – engines for international e-sales // International scientific journal "Internauka". Series: "Economic Sciences". — 2021. — №1. https://doi.org/10.25313/2520-2294-2021-1-6803
Kulova I. Methodology for building system processes in companies for successful international business // International scientific journal "Internauka". Series: "Economic Sciences". — 2020. — №12. https://doi.org/10.25313/2520-2294-2020-12-6791
