Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) FUJII Michiko and TAKAMOTO Akemi,Cluster Analysis of Bugs for Support of Programming Learning,日本教育工学会大会講演論文集,,,1995-11-03,11,,477-478,https://cir.nii.ac.jp/crid/1570572700179275776,