1. Braubach, Matthias, David E. Jacobs, and David Ormandy. 2011. “Environmental Burden of Disease Associated with Inadequate Housing: Summary Report.” World Health Organisation Europe, Copenhagen.
2. CDC (Centers for Disease Control and Prevention). n.d. “2014–2016 Ebola Outbreak in West Africa.” CDC, accessed May 11, 2021, https://www.cdc.gov/vhf/ebola/history/2014–2016-outbreak/index.html.
3. The ORIGINS of Primary Health Care and SELECTIVE Primary Health Care