1. Pinel J. Biopsychology (2013) Pearson-Allyn and Bacon, New York, USA.
2. https://www.bls.gov/ooh/Healthcare/Nursing-assistants.htm#tab-4
3. https://www.cms.gov/Regulations-and-Guidance/Guidance/Manuals/downloads/som107ap_pp_guidelines_ltcf.pdf
4. https://www.alz.org/dementia/types-of-dementia.asp
5. http://dementiatalk.net/history-of-dementia-when-did-it-all-start/