(3OQGSGJ aj fXQjI GdgLQI h eTcdGJgG GdELJeGYjI h GdKbGajI (B/ s - (3GdQHGjYg, CMeOs ((3YeGf (B:s (3OGFQI GdKbGaIh Gdafhf,s, 1984)
Keywords: (3GdgLQIs; (3GdegGLQjfs