TY JOUR TI APPROACH TO THE EVALUATION OF ECONOMIC AND SOCIAL EFFICIENCY OF THE USAGE OF THE NATURAL NON-MEDICAL ACTIVES OF THE THERAPEUTIC RESORT COMPLEX OF THE REGION KW sanatorium KW resort KW therapeutic resort complex KW resort business KW land resources KW financial results JO Vestnik of Astrakhan State Technical University. Series: Economics AU Oborin, M.. PY 2014 IS 2014 PB Astrakhan State Technical University