(3BKGQ GdeYGgOGJ HGdfSHI ddOhd ZjQ GdCWQGa (B/s - (3eMeO eLOi eQLGf s ((3GdbGgQI (B:s (3OGQ GdfgVI GdYQHjI ,s, 1981)
(3jTJed Ydi GQLGYGJ HHdjhLQGajI (B((3U(B.639-671).s
Keywords: (3GdbGfhf GdOhdj s; (3GdeYGgOGJ s