Angelova G, Parvanov P, chetrafilov G, Krasteva N, Krastev V. SUSTAINABILITY IN TOURISM CADRE TRAINING AND SELECTION IN BULGARIA. Rev. incl. [Internet]. 22 de junio de 2017 [citado 18 de abril de 2025];:144-56. Disponible en: https://revistainclusiones.org/index.php/inclu/article/view/583