1. UNESCO: The Plurality of Literacy and its implications for Policies and Programs. 2004, Available at : http://unesdoc.unesco.org/images/0013/001362/136246e.pdf
2. National Institute of Dental and Craniofacial Research, National Institutes of Health, US Public Health Service, US Dept of Health and Human Services: The invisible barrier: literacy and its relationship with oral health. A report of a workgroup sponsored by the National Institute of Dental and Craniofacial Research, National Institutes of Health, US Public Health Service, US Dept of Health and Human Services. J Public Health Dent. 2005, 65 (3): 174-182.
3. Council NC: Health Literacy: being able to make the most of health. 2004, LONDON, Available at: http://www.cdc.gov/healthliteracy/statedata/index.html
4. Davis TC, Crouch MA, Long SW, Jackson RH, Bates P, George RB, Bairnsfather LE: Rapid assessment of literacy levels of adult primary care patients. Fam Med. 1991, 23 (6): 433-435.
5. Pleasants RA: Measuring health literacy: A challenge to curriculum design and evaluation. 2009, The Centre for Literacy of Quebec, Available at: http://www.centreforliteracy.qc.ca/sites/default/files/measuring.pdf