Сидоров, В., and Н. Гайдей. “Islamic Banking System As a Unique Phenomenon of the World Banking System”. The Journal of V. N. Karazin Kharkiv National University. Series: International Relations. Economics. Country Studies. Tourism, no. 4 (1144, 2, 1, pp. 75-80, https://periodicals.karazin.ua/irtb/article/view/4507.