2008 연간한터차트 음반판매량 TOP50 [2008 Hanteo Chart Top 50 Album Sales] (in Korean). January 4, 2009. Archived from the original on July 4, 2018. Retrieved September 9, 2022.
C., Daniel (November 26, 2019). "Gaon's 관찰노트" [Gaon's Observation Notes]. Gaon Music Chart (in Korean). Archived from the original on November 28, 2019. Retrieved November 28, 2019.
2014년 Download Chart [2014 Download Chart]. Gaon Music Chart (in Korean). p. 4. Archived from the original on August 16, 2016. Retrieved August 7, 2016.
2014년 Download Chart [2014 Download Chart]. Gaon Music Chart (in Korean). p. 3. Archived from the original on August 16, 2016. Retrieved August 7, 2016.
2014년 Download Chart [2014 Download Chart]. Gaon Music Chart. p. 2. Archived from the original on August 5, 2016. Retrieved August 7, 2016.
Cumulative sales for "Here Come the Regrets", "Munbae-Dong", and "Lost One":
2005.05월 – 가요 음반 판매량 [2005.05 – Sales volume] (in Korean). Music Industry Association of Korea. Archived from the original on December 19, 2005. Retrieved May 13, 2021.
에픽하이, 1년 3개월만에 새 앨범 발매 [Epik High releases new album after 1 year and 3 months]. Osen (in Korean). April 15, 2008. Retrieved September 9, 2022 – via Naver.
"에픽하이 27일부터 전국 투어공연" [Epik High's nationwide tour starts on the 27th]. Munhwa Ilbo (in Korean). September 24, 2008. Retrieved September 9, 2022 – via Naver.
"99". October 19, 2012. Archived from the original on August 14, 2017.
2005.05월 – 가요 음반 판매량 [2005.05 – Sales volume] (in Korean). Music Industry Association of Korea. Archived from the original on December 19, 2005. Retrieved May 13, 2021.
2009년 음반판매 연간순위 [2009 Annual Music Record Sales] (in Korean). May 24, 2010. Archived from the original on February 2, 2020. Retrieved October 6, 2017.
2008 연간한터차트 음반판매량 TOP50 [2008 Hanteo Chart Top 50 Album Sales] (in Korean). January 4, 2009. Archived from the original on July 4, 2018. Retrieved September 9, 2022.
C., Daniel (November 26, 2019). "Gaon's 관찰노트" [Gaon's Observation Notes]. Gaon Music Chart (in Korean). Archived from the original on November 28, 2019. Retrieved November 28, 2019.
2014년 Download Chart [2014 Download Chart]. Gaon Music Chart (in Korean). p. 4. Archived from the original on August 16, 2016. Retrieved August 7, 2016.
2014년 Download Chart [2014 Download Chart]. Gaon Music Chart (in Korean). p. 3. Archived from the original on August 16, 2016. Retrieved August 7, 2016.
2014년 Download Chart [2014 Download Chart]. Gaon Music Chart. p. 2. Archived from the original on August 5, 2016. Retrieved August 7, 2016.