แหล่งที่มา WikiPedia: ลิงก์เสีย http://code.google.com/p/modbrokenlink/ http://www.undeadlinks.com/ http://www.useit.com/alertbox/980614.html http://www.wrox.com/WileyCDA/Section/id-301495.htm... http://warrick.cs.odu.edu/ http://www.spinellis.gr/pubs/jrnl/2003-CACM-URLcit... http://www.iwaw.net/05/papers/iwaw05-mccown1.pdf //doi.org/10.1045%2Fjanuary2002-nelson //doi.org/10.1109%2F2.901164 //doi.org/10.1145%2F602421.602422
