(3SfI GdJaGVd heG aVd Gddg Hg GdfSGA Ydi GdQLGds - (3YGHOI GdeDjO GdYXe(B.s; (3Ydj GdWfWGhj,ebOe(B.s ((3HjQhJ (B:s (3OGQ Hf MRe(B,s, 2000)
(3jJfGhd GdcJGH JaVjd GdPchQYf GdfSGA ef GdfGMjI GdESdGejI hGgejI GdeQCI hOhQgG(B.s
Keywords: (3GdESdGe (B- (3GdfSGA(B.s