อ้างอิง ของ ประแจ_(รถไฟ)

  1. ↑ http://www.youtube.com/watch?v=y7h4OtFDnYE Physicist Richard Feynman explains how a train stays on the tracks. BBC TV 'Fun to Imagine' (1983)
  2. ↑ Points and Crossings from Vossloh Cogifer
  3. ↑ Meyers, Marc A. (1994). Dynamic behavior of materials. New York: John Wiley. pp. 5, 570. ISBN 978-0-471-58262-5.
  4. ↑ "SCENE OF THE ACCIDENT". The Argus (Melbourne, Vic. : 1848–1956). Melbourne, Vic.: National Library of Australia. 29 January 1906. p. 7. สืบค้นเมื่อ 20 July 2011.

แหล่งที่มา

WikiPedia: ประแจ_(รถไฟ) http://nla.gov.au/nla.news-article10038956 http://www.catskillarchive.com/rrextra/tkmacph.Htm... http://www.templot.com/martweb/gs_realtrack.htm http://www.vossloh-cogifer.com/cms/media/downloads... http://www.youtube.com/watch?v=MbSmoUH1Cqk http://www.youtube.com/watch?v=y7h4OtFDnYE http://www.zboriljosef.cz/Links.html http://www.oberbauhandbuch.de/en/oberbauhandbuch/w... http://www.du.edu/~jcalvert/ http://www.du.edu/~jcalvert/railway/turnout.htm