1. Prof. M Ramgopal, lesson on Vapour compression refrigeration systems, version 1 ME, IIT Kharagpur (http://nptel.ac.in/courses/112105129/10).
2. High performance tube manufacturer's software file:///D:/Mechanical%20Software/Wlv%20software/EvaporatorInstallerInhouse/wlvevphelp.htm.
3. Compressor selection software of a reputed manufacturer (4.3.3 (AVI)) http://www.hanbell.com/service_program_eng.asp.