Books
OCA/OCP Oracle Database 11g All-in-One Exam Guide
2009
Oracle SQL Recipes
2010
Oracle Database 12c Release 2 New Features
2017
OCA/OCP Oracle Database 12c All-in-One Exam Guide (Exams 1Z0-061, 1Z0-062, & 1Z0-063)
2015
Oracle Database 12c DBA Handbook
2015
OCP Oracle Database 12c Advanced Administration Exam Guide (Exam 1Z0-063)
2015