1. Private sector participation in municipal solid waste management: guidance Pack (5 Volumes) | public private partnership (Internet). Ppp.worldbank.org; 2020. Available from: https://ppp.worldbank.org/public-private-partnership/library/private-sector-participation-municipal-solid-waste-management-guidance-pack-5-volumes. Accessed September 27, 2020.
2. Lecture Notes – ethiopia public health training initiative (Internet). Cartercenter.org; 2020. Available from: https://www.cartercenter.org/health/ephti/learning_materials/lecture_notes/index.html. Accessed September 27, 2020.
3. Occupational Medicine. Oxford Academic (Internet). Volume 70.Issue 5.Academic.oup.com; 2020. Available from: https://academic.oup.com/occmed/issue/70/5. Accessed September 27, 2020.
4. Occupational health hazards of street cleaners – a literature review considering prevention practices at the workplace
5. Respiratory health of municipal solid waste workers