L. Todorov, M. Shopova, and E. Ovchinnikov, “STATISTICAL EVALUATION OF E-COMMERCE IN THE EUROPEAN UNION AND THE REPUBLIC OF NORTH MACEDONIA”, Horiz Int Sci J, vol. 30, no. 1, pp. 150–163, Dec. 2022, doi: 10.20544/HORIZONS.A.30.1.22.P11.