(3GUdGM GdeUGYO GdcgQHGFjI hGdSdGde GdeJMQcI (B/ s - (3aGQhb eMeO GdYGeQis ([S.N] : (3GdOGQ GdeUQjI GddHfGfjI , s, 1990)
Keywords: (3GdeUGYOs; (3JUeje hJTjOs; (3GdGdcJQhfjGJ ai Gdfbds; (3GdQhGaYs; (3GdQhGaY GdcgQHGFjIs; (3GdGdcJQhfjGJs