(3GdEjeGf h GdJMOj (B: s (3TYQ (B/ s - (3GdUOjb, CMeO eMeOs ((3YeGf (B:s (3OGQ GdVjGA ddfTQ,s, 1985)
Keywords: (3GdTYQ GdYQHjs; (3GdCQOfs; (3GdYUQ GdMOjKs