APKPure Appを使用する
Dewey Decimal Classificationの旧いバージョンをダウンロードすることが可能
メルビルデューイによる「デューイ十進分類法」をお読みください！
Read "Dewey Decimal Classification; A Classification and Subject Index for Cataloguing and Arranging the Books and Pamphlets of a Library" by Melvil Dewey!
Once you install this app, you can read it by 1-click without connecting network.
You can also check your "Reading Score" from the menu.