2005-04-20 WEB JIS http://www.webstore.jsa.or.jp/webstore/Com/FlowControl.jsp?lang=jp&bunsyoId=JIS+X+8341-3%3A2004&dantaiCd=JIS&status=1&pageNo=1 http://hp-seisaku.j-nic.co.jp/webjis.html http://backno.mag2.com/reader/BackBody?id=200504040600000000145212000 http://www.kokoroweb.org/chap08/kkr08d1.html