Кущенко, Ірина, and Ольга Мамонтова. 1. “Statistic Estimation of Participation of the Ukrainian Economy in Global Economic Connections”. The Journal of V. N. Karazin Kharkiv National University. Series: International Relations. Economics. Country Studies. Tourism, no. 4 (1144, 2 (1), 36-40. https://periodicals.karazin.ua/irtb/article/view/4416.