research

base on this article, i draft my mind map;

http://en.wikipedia.org/wiki/Urbanism


http://archaeology.about.com/od/uterms/g/urbanism.htm


http://www.shaflik.com/documents/LIGHT%20POLLUTION%20TECHNICAL%20PAPER.pdf


http://www.britastro.org/dark-skies/pdfs/JPEL2006_08.pdf


http://ehp03.niehs.nih.gov/article/fetchArticle.action;jsessionid=D3B8194ED226160E029774E110BC4CCA?articleURI=info%3Adoi%2F10.1289%2Fehp.117-a20


http://online.wsj.com/article/SB121692767218982013.html?mod=googlenews_wsj


http://www.medicalnewstoday.com/releases/61808.php


http://www.rocketroberts.com/astro/litepol.htm