2004.02월 – 가요 음반 판매량 [2004.02 – Sales volume] (in Korean). Music Industry Association of Korea. Archived from the original on June 17, 2004. Retrieved May 8, 2021.
2007.03월 – 가요 음반 판매량 [2007.03 – Sales volume] (in Korean). Music Industry Association of Korea. Archived from the original on March 2, 2009. Retrieved May 16, 2021.
2007.04월 – 가요 음반 판매량 [2007.04 – Sales volume] (in Korean). Music Industry Association of Korea. Archived from the original on May 13, 2008. Retrieved May 16, 2021.
naver.com
entertain.naver.com
Ahn Jin-young (August 8, 2022). "'가수'로 돌아오는 이효리, 11일 '오늘부터 행복한 나' 발매" [Hyori Lee, returning as a 'singer', releases 'I'm Happy From Today' on the 11th] (in Korean). Munhwa Ilbo. Retrieved August 8, 2022 – via Naver.
Kim Ji-hye (August 10, 2022). "이효리, 위안부 피해자 영화 '코코순이' 엔딩곡 불러…작사·작곡도 직접" [Hyori Lee sings the ending song of the movie 'Koko Sooni' for the comfort women victim... Written and composed by myself] (in Korean). SBS Entertainment News. Retrieved August 10, 2022 – via Naver.
news.naver.com
음악산업협회, 허술한 음반 판매량 집계로 빈축. Yonhap News Agency (in Korean). Naver. July 27, 2006. Retrieved May 12, 2013.
riak.or.kr
The MIAK and RIAK charts were shut down in September 2008.
2004.02월 – 가요 음반 판매량 [2004.02 – Sales volume] (in Korean). Music Industry Association of Korea. Archived from the original on June 17, 2004. Retrieved May 8, 2021.
2007.03월 – 가요 음반 판매량 [2007.03 – Sales volume] (in Korean). Music Industry Association of Korea. Archived from the original on March 2, 2009. Retrieved May 16, 2021.
2007.04월 – 가요 음반 판매량 [2007.04 – Sales volume] (in Korean). Music Industry Association of Korea. Archived from the original on May 13, 2008. Retrieved May 16, 2021.