(3GdUjZ GdLfGFjI (B:s (3GdUjZ GdLfGFjI GdWYhf hGdWdHGJ hGdEYdGfGJ (B/s - (3MGeO GdTQjas ((3GdCRGQjWI (B:s (3OGQ GdacQ GdLGeYj ,s, 1992)
. 365-357 (3HHdjhLQGajG(B: (3UaMGJ(B.s
(3jTJed Ydi EQLGYGJ HHdjhLQGajIs
Keywords: (3ELQGAGJ GdeMGceI GdLfGFjIs