(3GdJfXje GdOhdj(B:s (3GdfXQjI GdYGeI (B- (3GdCee GdeJMOI(B/s - (3GHQGgje eMeO GdYfGfjs ((3GdbGgQI(B:s (3OGQ GdacQGdYQHj,s, 1982)
.(3jTJed Ydi EQLGYGJ HHjdhLQGajI(B.s
(3GdfU HGddZI GdYQHjIs
Keywords: (3GdbGfhf GdOhdj GdYGes -- (3GdefXeGJ GdOhdjIs