Fraleigh, John B.: A first course in abstract algebra, 2003. Addison-Wesley. ISBN: 0-321-15608-0 (h.), 0-201-76390-7 (ib.) . 7th edition.
Sections 0-6, 8-11, 13-23, 26-27, 29-31, 36-37, 45, 48-51, 53, 55-56