(3GdKbGag GdGSdGejg Hjf GdZRh hGdGSJZRGA (B/ s - (3YHOGdefYe GdfeQs ([S.N] : (3OGQ GdeYGQa , s, 1987)
Keywords: (3GdUdjHjhfs; (3GdGSJTQGb hGdeSJTQbhfs; (3GdKbGaI GdGSdGejIs