http://www.jitec.ipa.go.jp/1_04hanni_sukiru/mondai_kaitou_2004h16_2/2004h16a_ad_am_ans.pdf
http://www.jitec.ipa.go.jp/1_04hanni_sukiru/mondai_kaitou_2004h16_2/2004h16a_ad_pm_ans.pdf
http://www.jitec.ipa.go.jp/1_04hanni_sukiru/mondai_kaitou_2004h16_2/2004h16a_fe_am_ans.pdf
http://www.jitec.ipa.go.jp/1_04hanni_sukiru/mondai_kaitou_2004h16_2/2004h16a_fe_pm_ans.pdf