"Tri-Angle (2004)" (in Korean). Music Industry Association of Korea. October 2004. Archived from the original on November 27, 2004. Retrieved January 11, 2014.
"June 2008 Sales" (in Korean). Music Industry Association of Korea. Archived from the original on July 18, 2008. Retrieved October 15, 2017.
"Rising Sun (2005)" (in Korean). Music Industry Association of Korea. October 2005. Archived from the original on May 18, 2009. Retrieved January 25, 2018.
"May 2008 Sales" (in Korean). Music Industry Association of Korea. Archived from the original on March 8, 2009. Retrieved April 27, 2015.
"November 2006 Sales" (in Korean). Music Industry Association of Korea. Archived from the original on March 8, 2009. Retrieved April 27, 2015.
"O"-Jung.Ban.Hap had sold 397,630 copies as of August 2008, sold 41,108 copies in 2010, and sold 40,972 copies between 2011–2022.
"2006 Sales" (in Korean). Music Industry Association of Korea. Archived from the original on March 14, 2009. Retrieved April 27, 2015.
"September 2008 Sales" (in Korean). Music Industry Association of Korea. Archived from the original on February 21, 2009. Retrieved April 27, 2015.
"May 2007 Pop Chart Sales" (in Korean). Music Industry Association of Korea. Archived from the original on December 11, 2008. Retrieved December 4, 2015.
Cumulative sales of New Chapter #1 : The Chance of Love on Oricon Chart:
月間 アルバムランキング 2018年03月度 [CD album monthly ranking of March 2018] (in Japanese). Oricon. Archived from the original on April 18, 2018. Retrieved April 18, 2018.
週間 アルバムランキング 2018年09月17日~2018年09月23日 [CD album monthly ranking of September, 2018] (in Japanese). Oricon. Archived from the original on October 10, 2018. Retrieved October 11, 2018.
月間 アルバムランキング 2019年10月度 [Monthly CD Album Ranking, October 2019] (in Japanese). Oricon. Retrieved November 13, 2019.
=週間 アルバムランキング – 2022年03月28日付 [Weekly Album Ranking - March 28, 2022] (in Japanese). Oricon. Archived from the original on March 23, 2022. Retrieved March 23, 2022.
月間 CDアルバムランキング 2017年10月度 [CD album monthly ranking of October 2017] (in Japanese). Oricon. Archived from the original on November 9, 2017. Retrieved November 9, 2017.
"Tri-Angle (2004)" (in Korean). Music Industry Association of Korea. October 2004. Archived from the original on November 27, 2004. Retrieved January 11, 2014.
"June 2008 Sales" (in Korean). Music Industry Association of Korea. Archived from the original on July 18, 2008. Retrieved October 15, 2017.
"Rising Sun (2005)" (in Korean). Music Industry Association of Korea. October 2005. Archived from the original on May 18, 2009. Retrieved January 25, 2018.
"May 2008 Sales" (in Korean). Music Industry Association of Korea. Archived from the original on March 8, 2009. Retrieved April 27, 2015.
"November 2006 Sales" (in Korean). Music Industry Association of Korea. Archived from the original on March 8, 2009. Retrieved April 27, 2015.
"O"-Jung.Ban.Hap had sold 397,630 copies as of August 2008, sold 41,108 copies in 2010, and sold 40,972 copies between 2011–2022.
"2006 Sales" (in Korean). Music Industry Association of Korea. Archived from the original on March 14, 2009. Retrieved April 27, 2015.
"September 2008 Sales" (in Korean). Music Industry Association of Korea. Archived from the original on February 21, 2009. Retrieved April 27, 2015.
Cumulative sales of New Chapter #1 : The Chance of Love on Oricon Chart:
月間 アルバムランキング 2018年03月度 [CD album monthly ranking of March 2018] (in Japanese). Oricon. Archived from the original on April 18, 2018. Retrieved April 18, 2018.
"May 2007 Pop Chart Sales" (in Korean). Music Industry Association of Korea. Archived from the original on December 11, 2008. Retrieved December 4, 2015.
週間 アルバムランキング 2018年09月17日~2018年09月23日 [CD album monthly ranking of September, 2018] (in Japanese). Oricon. Archived from the original on October 10, 2018. Retrieved October 11, 2018.
"2004 Year End Sales" (in Korean). Music Industry Association of Korea. Archived from the original on August 1, 2008. Retrieved January 31, 2009.
=週間 アルバムランキング – 2022年03月28日付 [Weekly Album Ranking - March 28, 2022] (in Japanese). Oricon. Archived from the original on March 23, 2022. Retrieved March 23, 2022.
月間 CDアルバムランキング 2017年10月度 [CD album monthly ranking of October 2017] (in Japanese). Oricon. Archived from the original on November 9, 2017. Retrieved November 9, 2017.