(3GdJUQa ZjQ GdeTQhY HGdCYVGA GdHTQjI aj GdbGfhf GdLfGFj (B: s (3OQGSI ebGQfI (B/ s - (3RYGd, MSfj YhOIs ((3YeGf (B:s (3GdOGQ GdYdejI GdOhdjI (B- (3OGQ GdKbGaI,s, 2001)
Keywords: (3GdbGfhf GdLfGFjs; (3GdeSDhdjIs; (3GdELQGAGJ GdLfGFjIs; (3GdCYVGAs; (3RQY GdCYVGAs; (3fbd GdCYVGAs