(3GdceHjhJQ heMGcGI GdYedjGJ GdcjejGFjI (B:s (3GdcJGH GdKGfi Md GdeYGOdGJ GdJaGVdjI (B/s - (3YHOGddWja GHhGdSYhOs ((3HjQhJ (B:s (3OGQ GdQGJH GdLGeYjI,s, 1989)
Keywords: (3GdJaGVd hGdJcGeds; (3GdMGSHGJ GdGdcJQhfjIs; (3GdeYGOdGJ GdJaGVdjIs; (3GdgfOSI GdJaGVdjI hGdJcGedjIs; (3GdeYGOdGJ GdcjejGFjIs