1. United Nations, Transforming our world: the 2030 Agenda for Sustainable Development, 2015. Retrieved from https://www.un.org/ga/search/view_doc.asp?symbol=A/RES/70/1&Lang=E.
2. United Nations Economic and Social Council, Progress towards the Sustainable Development Goals (E/2020/57), 2020. Retrieved from https://unstats.un.org/sdgs/files/report/2020/secretary-general-sdg-report-2020--EN.pdf.
3. A. Brew-Hammond, Energy access in Africa: Challenges ahead, Energy Policy. 38 (2010) 2291–2301. https://doi.org/10.1016/j.enpol.2009.12.016.
4. A research agenda for a people-centred approach to energy access in the urbanizing global south;Broto;Nat. Energy.,2017
5. United Nations Department of Economic and Social Affairs, World Urbanization Prospects: The 2018 Revision (ST/ESA/SER.A/420), United Nations, New York, 2019. Retrieved from https://population.un.org/wup/Publications/Files/WUP2018-Report.pdf.