2008-09-16 KOSHIGOE学習帳 - [Ruby] Rails Engines基礎 NEWS http://w.koshigoe.jp/study/?%5BRuby%5D%20Rails%20Engines%B4%F0%C1%C3 http://b.hatena.ne.jp/entry/http://w.koshigoe.jp/study/?%5BRuby%5D%20Rails%20Engines%B4%F0%C1%C3