大公開!『バレンタインソング』といえばこの曲! [The Great Exhibition! When speaking of a "Valentine song", this is the song!] (in Japanese). Oricon Style. February 3, 2006. Archived from the original on March 23, 2010. Retrieved March 17, 2010.
キンキ13連続初登場1位をギネスが認定. Nikkan Sports (in Japanese). January 3, 2002. Archived from the original on January 5, 2002. Retrieved June 5, 2010.
大公開!『バレンタインソング』といえばこの曲! [The Great Exhibition! When speaking of a "Valentine song", this is the song!] (in Japanese). Oricon Style. February 3, 2006. Archived from the original on March 23, 2010. Retrieved March 17, 2010.
yesasia.com
"YesAsia 39". YesAsia. Retrieved October 15, 2009.