(3GdGSeGA heYGfjgG (B/ s - (3hdjO fGUjas ((3GdbGgQI (B: s (3OGQ GdcJGH GdYQHi , s, 1997)
Keywords: (3GSeGA GdGTNGUs; (3GdQJH hGdGdbGHs; (3GddZI GdYQHjI (B- (3GdGdaGXs