1. Double-exposure flat-plate collector;Souka;Solar Energy,1965
2. Optimum orientations for the double-exposure, flat-plate collector and its reflectors;Souka;Solar Energy,1966
3. Giza Weather Bureau Report,1964
4. Effect of heat storage and variation in outdoor temperature and solar intensity on heat transfer through walls;Alford;ASHVE Trans.,1939
5. Panel heating;ASHRAE;Guide and Data Book, Applications,1962