Zaharia, Marian, and Aniela Bălăcescu. “THE ROLE OF FOREIGN TOURISTS’ FLOW IN THE SUSTAINABLE DEVELOPMENT OF ROMANIA AND BULGARIA”. Tourism International Scientific Conference Vrnjačka Banja - TISC 2, no. 2 (June 3, 2017): 236-253. Accessed May 3, 2024. http://www.tisc.rs/proceedings/index.php/hitmc/article/view/101.