1. International Energy Agency, “World Energy Outlook 2017; 2018., (n.d.).
2. APERC, Towards zero-emission efficient and resilient buildings GLOBAL STATUS REPORT 2016, (2001) 1–32.
3. Can renewable energy power the future?;Moriarty;Energy Policy.,2016
4. Seoul Waterworks Authority, Waterworks Hydrothermal Energy Utilization Promotion Plan, 2020, (n.d.).
5. Korean Society of Equipment Engineers, Unutilized Energy Technical Lecture, 2019, (n.d.).