(3GdJQHjI GdfaSjI ddWad hGdeQGgb (B/ s - (3YHOGdQMef GdYjShis ((3HjQhJ (B: s (3OGQ GdQGJH GdLGeYjI , s, 2000)
Keywords: (3GdGWaGd (B- (3fehs; (3GdGWaGd (B- (3JQHjIs; (3GdGWaGd, GdYfGjI GdUMjIs; (3GdGWaGd (B- (3GeQGV (B- (3Yde faSs; (3GdeQGgbhf (B- (3Yde faSs; (3GdGWaGd, Yde faSs; (3GdGWaGd (B- (3GdeTGcd GdGLJeGYjIs