(3PQGFY GdYUHjGJ GdYfUQj aj GKGQI GdMQhH hMedGJ fGOQ TGg Ydi GdYQGb aj QhGjI TGgO YjGf (B:s - (3GdGKQj ,eMeO HgLIs ((3HZOGO(B:s (3eWHYI GdeLeY GdYdej GdYQGbj ,s, 1981)
Keywords: (3GdYQGb(B-(3JGQjN(B-(3GdYUQ GdYKeGfj s