http://www5e.biglobe.ne.jp/~linus/03yoko.htm

http://www009.upp.so-net.ne.jp/OLP_webpage/in/akashipo.doc

http://www1.plala.or.jp/washiro/miyako/main.html

http://www.orienteering.com/~saitama/honjou.htm

http://www.orienteering.com/~saitama/inc.htm

http://www.orienteering.com/~saitama/OCAD_1.htm