Budiman, N. A. S. ., & Ramadhan, I. (2024). Defining European Union’s Energy Security from the Perspective of 4A (Availability, Accessibility, Acceptability, Affordability) as an Impact from Russia-Ukraine’s Conflict. Journal of International Studies on Energy Affairs, 5(1), 57–79. https://doi.org/10.51413/jisea.Vol5.Iss1.2024.57-79