(3QSGFd ef bdH GdMUGQ (B/ s - (3CHh YeGQ, s ((3YeGf (B:s (3OGQ GdLdjd ddfTQ,s, 1983)
Keywords: (3dHfGfs; (3GdJGQjNs; (3GdMQH GdadSWjfjI GdESQGFjdjI , (B1982s