D. Foris, M. Plesca, T. Foris, D. Tokar (2017). PROTECTING SWEET WATER RESOURCES FROM MOUNTAIN AREA THROUGH ECOLOGICAL INVESTMENTS IN TOURISM INDUSTRY. 4th International Multidisciplinary Scientific Conference on Social Sciences and Arts SGEM 2017, 631-638. https://doi.org/10.5593/sgemsocial2017/14/S04.083