Java Concepts by Roberto Zicari · Published January 1, 2004 · Updated February 24, 2014 C. S. Horstmann, Java Concepts, John Wiley & Sons, 2004 (4th edition), ISBN 0471697044
Object-Oriented Programming: A Unified Foundation November 3, 2013 by Roberto Zicari · Published November 3, 2013 · Last modified February 26, 2015
Model-Driven Testing. November 3, 2013 by Roberto Zicari · Published November 3, 2013 · Last modified February 24, 2014
Touch of Class. November 3, 2013 by Roberto Zicari · Published November 3, 2013 · Last modified February 24, 2014