1. Changrok Soh, Minwoo Kim and Daniel Connolly, the Fourth Industrial Revolution, Human Labor and Human Rights, Journal of International and Area Studies, Vol. 27, No. 2 (December 2020), pp. 95-112, Published By: Institute of International Affairs, Graduate School of International Studies, Seoul National University https://www.jstor.org/stable/27204035.
2. United Nations, Department of Economic and Social Affairs, 68% of the world population projected to live in urban areas by 2050, https://www.un.org/development/desa/en/news/population/2018-revision-of-world-urbanization-prospects.html.
3. Solar photovoltaic industry in the U.S., Statistics report on the solar photovoltaic industry in the United States https://www.statista.com/study/64822/us-solar-photovoltaic-industry/.
4. Angus McCrone, Bloomberg New Energy Finance provides insight, data and news on the transformation of the energy sector, https://www.devex.com/organizations/bloomberg-new-energy-finance-bnef-50984.
5. IEA (2022), Approximately 100 million households rely on rooftop solar PV by 2030, IEA, Paris https://www.iea.org/reports/approximately-100-million-households-rely-on-rooftop-solar-pv-by-2030, License: CC BY 4.0, https://www.iea.org/reports/approximately-100-million-households-rely-on-rooftop-solar-pv-by-2030.