1. Solar Energy Thermal Processes;Duffie,1974
2. Proposed Standard Method for Rating Solar Collectors Based on Thermal Performance;National Bureau of Standards,1974
3. Flat Plate Collector Performance Determined with a Solar Simulator;Vernon,1974
4. A standard test for solar water heaters;Whillier,1964
5. Evaluation of flat-plate collector performance;Hottel,1958