http://marmara.edu.tr/
http://www.sswm.info/content/water-distribution-pipes
https://en.wikipedia.org/wiki/Water_pipe
https://treeyopermacultureedu.wordpress.com/chapter-7-water/the-numbers-behind-the-half-hydrological-cycle/
http://www.freedompreppers.com/water.htm
http://www.fao.org/docrep/u3160e/u3160e07.htm#5.1 site and technique selection
https://www.sydneywater.com.au/SW/teachers-students/facts-about-water/secondary-students/where-does-water-come-from-/catchments/index.htm
http://www.nhmrc.gov.au/publications/synopses/eh19syn.htm.
https://en.wikipedia.org/wiki/Reservoir
http://goodwatercompany.com/
www.wikiwand.com
familypedia.wikia.com
http://www.icold-cigb.org/GB/Dams/role_of_dams.asp
www.foy.com.tr