[1] tenji_h26_shotai_leaflet.pdf, , https://www.npb.go.jp/ja/museum/tenji/kako/pdf/tenji_h26_shotai_leaflet.pdf#page=9
[2] Microsoft Word - 日本デザイン学会春季2013原稿last.docx - 61_31.pdf, https://www.jstage.jst.go.jp/article/jssd/61/0/61_31/_pdf
[3] 55_127.pdf, https://www.jstage.jst.go.jp/article/nig/55/2/55_127/_pdf