(3GfJ hbOQGJc (B/ s - (3YHOGdYRjR GdbhUis; (3YWjI eMehO egfG (B((3eJQLe(B)s; (3HjdGQO, aQLjfjGs ((3GdbGgQI (B: s (3ecJHI GdfgVI GdeUQjI , s, 1984)
Keywords: (3GdbOQI GdYbdjIs; (3GdTNUjI, Yde GdfaSs; (3GdbOQGJs