(3Ojhf GdYGde GdKGdK Ydi VhA CMcGe GdbGfhf GdOhdj (B/s - (3CHh GdYWGA, QjGV UGdM(B.s ((3GdbGgQI (B:s (3OGQ GdfgVI GdYQHjI,s, 1993)
(3GdCUd CWQhMI OcJhQGg(B-(3LGeYI WfWG(B.s
Keywords: (3GdOjhf GdNGQLjI (B((3bGfhf Ohdj(B)s -- (3GdOhd GdfGejIs