(3GdGQc HbjGOI jYbhH GdefUhQ GdehMOi (B/ s - (3Thbi GHhNdjds ([S.N] : (3OGQ GdacQ , s, 1979)
Keywords: (3GdGfOdSs; (3GdJGQjN GdGSdGeis; (3OhdI GdehMOjfs; (3eYQcI GdGQcs