O'Neil, Dennis (2008). "Hardy-Weinberg Equilibrium Model" 19 Şubat 2008 tarihinde Wayback Machine sitesinde arşivlendi.. The synthetic theory of evolution: An introduction to modern evolutionary concepts and theories. Behavioral Sciences Department, Palomar College. Retrieved 2008-01-06
Bright, Kerry (2006). "Causes of evolution" 13 Mayıs 2013 tarihinde Wayback Machine sitesinde arşivlendi.. Teach Evolution and Make It Relevant. National Science Foundation. Retrieved 2007-12-30.
web.archive.org
O'Neil, Dennis (2008). "Hardy-Weinberg Equilibrium Model" 19 Şubat 2008 tarihinde Wayback Machine sitesinde arşivlendi.. The synthetic theory of evolution: An introduction to modern evolutionary concepts and theories. Behavioral Sciences Department, Palomar College. Retrieved 2008-01-06
Bright, Kerry (2006). "Causes of evolution" 13 Mayıs 2013 tarihinde Wayback Machine sitesinde arşivlendi.. Teach Evolution and Make It Relevant. National Science Foundation. Retrieved 2007-12-30.