1. Solar engineering of thermal processes;Duffie,1980
2. BSE guidelines and directions for determining the usability of solar collectors,1978
3. Methods of testing to determine the thermal performance of solar collectors;ASHRAE standard 93-77,1978
4. Recommendations for European solar collector test methods (liquid heating collectors);Derrick,1980
5. Diurnal efficiency at mid latitudes of solar collectors with various thermal capacitances;Jones;Appl. Energy,1986