Angelova , G. ., Parvanov , P. ., chetrafilov , G. ., Krasteva , N. ., & Krastev , V. . (2017). SUSTAINABILITY IN TOURISM CADRE TRAINING AND SELECTION IN BULGARIA. Revista Inclusiones, 144-156. Recuperado a partir de https://www.revistainclusiones.org/index.php/inclu/article/view/583