1. The derivations of several “Plate-efficiency factors” useful in the design of flat-plate solar heat collectors
2. “Economic Use of Materials in the Design of Solar Water heating Collecting Plates of the Pipe and Fin Type” presented at ISIC;MacGregor,1978
3. Solar Energy—Thermal Resistance of Pip-Fin Junctions;Williamson,1976
4. T. H. Holland and J. T. Borjoni, “Design, Fabrication, Testing and Delivery of a Solar Energy Collector System for Residential Heating and Cooling”, Energy Resources Centre, Minneapolis, Minnesota, No. NA 581–31327.