(3LQGFe GdJLSS ai GdJTQjY GdYQGbi (B: s (3OQGSI ebGQfI (B/s - (3SYO EHQGgje GdCYXeis ((3ehUd (B:s (3eDSSI OGQ GdcJH GdWHGYI hGdfTQ ,s, 1981)
(3jTJed Ydj GQLGYGJ HHdjhLQGajI(B.s
(3HHdjhLQGajG (B: (3UaMGJ (B303 -318.s
(3GdfU HGddZI GdYQHjIs
Keywords: (3GdLQGFe GdeGSI HGdCef GdOGNdi ddOhdIs -- (3GdYQGbs; (3GdbGfhf GdLfGFjs