http://www.utami.community.undip.ac.id/files/2010/07/BAB-3-Pompa-Sentrifugal1.pdf

http://repository.usu.ac.id/bitstream/123456789/34411/4/Chapter%20II.pdf

http://centrifugalpumpsimulator1.wordpress.com/perhitungan-cps/perhitungan-torsi-poros-pompa/

http://technicmechanical.blogspot.com/2009/05/perencanaan-poros-macam-poros-serta.html

http://yefrichan.wordpress.com/2010/05/08/elemen-mesin-poros/

http://mahdiy.wordpress.com/2013/01/06/perhitungan-pembebanan-pada-poros/