Links
[1] https://www.lewis.ucla.edu/publication/placemaking-for-an-aging-population-guidelines-for-senior-friendly-parks/
[2] https://www.moh.gov.sg/content/moh_web/home/Publications/educational_resources/2014/cfaa-guidebook---creating-senior-friendly-communities.html
[3] http://journals.sagepub.com/doi/pdf/10.1177/0956247810379935