1. Australian/New Zealand Standard, 2007. Test Methods for Solar Collectors Part 1: Thermal Performance of Glazed Liquid Heating Collectors Including Pressure Drop (ISO 9806-1:1994, MOD).
2. Balkoski, K.M., 2011. Performance Analysis of Medium Temperature Non-Tracking Solar Thermal Concentrators, MSc Thesis. University of California Merced.
3. The derivations of several “Plate-efficiency factors” useful in the design of flat-plate solar heat collectors;Bliss;Sol Energy,1959
4. Formulas for friction factor in transitional regimes;Cheng;J. Hydraulic Eng.,2008
5. Solar Engineering of Thermal Processes;Duffie,2013