1. Dede, C. (2010). Comparing Frameworks for 21st Century skills. 21st Century skills: Rethinking how students learn. Edited by, James Bellanca, Ron Brandt. Bloomington, IN: Solution Tree Press, 51-76.
2. Enhancing Student Performance Using Tablet Computers;Enriquez;College Teaching,2010
3. Fisher, D. & Frey, N. (2010). Preparing students for mastery of 21st Century skills. 21st Century skills: Rethinking how students learn. Edited by, James Bellanca, Ron Brandt. Bloomington, IN: Solution Tree Press, 221-240.
4. e-Learning Concept and Practice;Holmes,2006
5. Online Enhanced Problem-Based Learning: Assessing a Blended Learning Framework;Ian;Law Teacher,2010