1. Creative Commons. (n.d.). About. About-Creative Commons, http://creativecommons.org/about (retrieved April 18, 2012)
2. Hong Kong Copyright Ordinance. Section 45. Reprographic copying made by educational establishments or pupils of passages from published works (2007), http://www.legislation.gov.hk/blis_ind.nsf/e1bf50c09a33d3dc482564840019d2f4/3484dc1af84653c148257338001769a0?OpenDocument (retrieved April 18, 2012)
3. Hong Kong Copyright Ordinance. Section 41A. Fair dealing for purposes of giving or receiving instruction (2007), http://www.legislation.gov.hk/blis_ind.nsf/CURALLENGDOC/7B90EA57827AED8C4825730F003496E0?OpenDocument (retrieved April 18, 2012)
4. Massachusetts Institute of Technology. In Free Online Course Materials MIT Open CourseWare (2012), http://ocw.mit.edu/index.html (retrieved April 18, 2012 )
5. Matkin, G.W.: The open educational resources movement: current status and prospects (2010), http://unex.uci.edu/pdfs/dean/matkin_apru_paper.pdf (retrieved April 18, 2012)