Sustainable Energy - Choosing Among Options: Tester, J. W., Drake, E. M., Golay, M. W., Driscoll, M. J. and Peters, W. A. 2005Cambridge, MA: MIT Press, 2005. ISBN: 0262201534
Electricity, Efficient End-use and New Generation Technologies and Their Planning Implications: Johansson, T. B., Bodlund, B., Williams, R. H., eds.1989Sweden: Lund University Pres
Heating and Cooling of Buildings: Design for Efficiency: Kreider, F. I. and Rabl, A.1994McGraw-Hill