Munitlak Ivanović, Olja, and Petar Mitić. 2017. “SUSTAINABLE TOURISM AND ECOTOURISM: AN INQUIRY INTO THEORETIC TIES WITH SUSTAINABLE DEVELOPMENT”. Tourism International Scientific Conference Vrnjačka Banja - TISC 2 (2), 290-305. https://tisc.rs/proceedings/index.php/hitmc/article/view/104.