Galina Kulikovskaya, Gurgen Gukasyan. "OIL RESOUR-ES IN THE ECONOMIC POLICY OF SOME OPEC COUNTRIES AND RUSSIA." SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 20th International Multidisciplinary Scientific GeoConference Proceedings SGEM 2020, Ecology, Economics, Education and Legislation (2020): 365-372. https://doi.org/10.5593/sgem2020/5.2/s21.045