1. Ministry of Education. (2008). "Standard criteria for core subject, science subject: core curriculum basic education 2008" Kurusapa Ladprao printing press.
2. Pimpan Dachakupt and Other. (2015). "learning activities in 21 century". Chulalongkorn univesity press.
3. knowledge-management-tools (2008)." What is Knowledge management?" Online: http://www.knowledge-management-tools.net.
4. Surapon Boonlue (2008). "A Development of Knowledge Management Model by ICT of Elder Community in Thailand"
5. Nonaka, kujiro and Takeuchi, Hirotaka. (2005). Classic work: Theory of Organizational Knowledge.