レコード協会調べ 2月度有料音楽配信認定 <略称:2月度認定> [Record Association report: February digital music download certifications (Abbreviation: February Certifications)]. RIAJ (in Japanese). March 25, 2011. Retrieved March 25, 2011.
レコード協会調べ 3月度有料音楽配信認定<略称:3月度認定> [Record Association report: March digital music download certifications (Abbreviation: March Certifications)]. RIAJ (in Japanese). April 20, 2011. Retrieved April 20, 2011.
sonymusic.co.jp
西野 カナ : 君って. Sony Music Online Japan (in Japanese). Retrieved 2010-11-06.