@techreport{weko_54838_1,
   author	 = "坂谷内,勝",
   title	 = "発達的概念形成に基づく確率概念の学習者理解状態モデルの構築",
   year 	 = "1990",
   institution	 = "金沢工業大学",
   number	 = "30(1990-CE-010)",
   month	 = "apr"
}