References
- http://moodle.org
- http://moodle.co.kr
- http://okmindmap.com
- http://en.wikipedia.org/wiki/Open_educational/resources
- http://princess.kongju.ac.kr/digitalmain/lecplan/lecplanframe.htm
- http://ozark.hendrix.edu/-burch/logisim/
- http://www.theconversationprism.com
- http://sourceforge.net
- http://www.khanacademy.org/
- http://goo.gI/MkJWe