2014-11-28 Androidアプリ開発のためのGoogleのガイダンス http://www.infoq.com/jp/news/2014/11/google-guide-android-app "The Secrets to App Success on Google Play" https://developer.android.com/distribute/googleplay/guide.html http://commondatastorage.googleapis.com/androiddevelopers/shareables/distribute/play_dev_guide_secrets_en.pdf