1. Agencia de Regulación y Control de la Electricidad, 2022. Informe Técnico Económico Para El anáLisis Y Determinacion Del Costo Total Del Sector Eléctrico. QUITO.
2. ETC-20 solar collector [www document];Apricus,2021
3. Separated pressure solar water heater [www document];APS Products,2020
4. Possible Russian invasion of Ukraine, scenarios for sanctions, and likely economic impact on Russia, Ukraine and the EU;Astrov,2022
5. Modelling of solar thermal energy for household use in equatorial latitude by using the F-chart model;Astudillo-flores,2021