Lloyd, Elisabeth A.:The case of the female orgasm: Bias in the science of evolution.Cambridge, Massachusetts:Harvard University Press, 2005.ISBN0674017064Teoksen verkkoversio.(englanniksi)
Richard D. McAnulty & M. Michele Burnette:Sex and Sexuality: Sexual function and dysfunction, s. 51.Greenwood Publishing Group, 2006.ISBN9780275985837Google Book.