(3GdJhLjg GdOjebQGWj aj GdCQOf (B: s (3CHYGOg h fJGFLg (B/ s - (3LQGOGJ, UGdM CMeOs ((3YeGf (B:s (3OGQ GdHTjQ,s, 1995)
Keywords: (3GdOjebQGWjIs; (3GdCfXeI GdSjGSjIs; (3GdCQOfs