1. Low Temperature Engineering Applications of Solar Energy, Chap. 3, Design factors Influencing Collector Performance;Whillier,1967
2. Solar Energy Thermal Processes;Duffie,1974
3. Method of Testing for Rating Solar Collectors Based on Thermal Performance;Hill,1974
4. Effects of Thermal Capacitance upon the Performance of Flat-Plate Solar Collectors;Klein,1973