Kulova I. Comparative analysis of the value which Facebook Ads and Google Ads add to the business // International scientific journal "Internauka". Series: "Economic Sciences". — 2021. — №11. https://doi.org/10.25313/2520-2294-2021-11-7755

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

Kulova I. Research on project and product management in technology industry in the digital era // International scientific journal "Internauka". Series: "Economic Sciences". — 2021. — №1. https://doi.org/10.25313/2520-2294-2021-1-6814

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