Burak Sakal, Halil, and Daniela Pastarmadzhieva. “ENERGY AND ENVIRONMENT IN TURKISH-BULGARIAN RELATIONS”. Proceedings of the International Scientific Conference "Social Changes in the Global World" 2, no. 8 (December 16, 2021): 347-370. Accessed April 28, 2024. https://js.ugd.edu.mk/index.php/scgw/article/view/4705.