Keith, M. Pro JPA 2. Covers JPA 2.1 [Electronic resource] : a definitive guide to mastering the Java persistence API / M. Keith, M. Schincariol. - 2nd ed. - Electronic text data. - New York, NY [etc.] : Apress, 2013. - on-line. - (The Expert's Voice® in Java). - Загл. с экрана. - ISBN 978-1-4302-4927-6 : Б. ц.