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"2022년 02월 Album Chart" [February 2022 Album Chart] (in Korean). Korea Music Content Association. Archived from the original on March 10, 2022. Retrieved March 14, 2022 – via Gaon Chart.
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"Apink Special Album [HORN]". official.apink2011. January 21, 2022. Archived from the original on February 14, 2022. Retrieved February 14, 2022 – via Instagram.
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Im Dong-yeop (May 2022). "Apink – Horn". IZM (in Korean). Retrieved January 28, 2023.
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Kim, No-eul (December 22, 2021). "에이핑크 측 "손나은 포함 완전체 2월 컴백, 앨범 형태 미정" [공식입장]" [Apink side "Feb comeback with Son Na-eun, album form undecided" [Official position]] (in Korean). X-port News. Archived from the original on February 14, 2022. Retrieved February 14, 2022 – via Naver.
Jeong, Hee-yeon (January 18, 2022). "손나은, 에이핑크 컴백 활동 불참 "차기작 협의" (전문) [공식]" [Son Na-eun, Apink's comeback absence "Consultation for next project" (Full text) [Official]] (in Korean). Sports Donga. Archived from the original on February 14, 2022. Retrieved February 14, 2022 – via Naver.
Kim, Ji-hye (January 22, 2022). "에이핑크, 2월 14일 컴백 확정..스페셜 앨범 'HORN' 발표(공식)" [Apink, February 14 comeback confirmed..Special album 'HORN' released (official)] (in Korean). Herald Pop. Archived from the original on February 14, 2022. Retrieved February 14, 2022 – via Naver.
Kim, Myung-mi (January 26, 2022). "'컴백' 에이핑크, 타이틀곡은 '딜레마'...스페셜 앨범 트랙리스트 공개" ['Comeback' Apink, title song 'Dilemma'...Special album track list released] (in Korean). Newsen. Archived from the original on February 14, 2022. Retrieved February 14, 2022 – via Naver.
Hwang, Hye-jin (February 8, 2022). "'컴백' 에이핑크, 신곡 '딜레마' 포함 전곡 하이라이트 메들리 공개" ['Comeback' Apink unveils highlight medley of all songs including new song 'Dilemma'] (in Korean). Newsen. Archived from the original on February 14, 2022. Retrieved February 14, 2022 – via Naver.
Kwak, Hyeon-su (February 14, 2022). "에이핑크, 신곡 '딜레마' MV 티저 공개...4연속 히트 예고" [Apink releases new song 'Dilemma' MV teaser...4th consecutive hit notice] (in Korean). YTN. Archived from the original on February 14, 2022. Retrieved February 14, 2022 – via Naver.
Kim, Ye-na (February 14, 2022). "에이핑크, 오늘(14일) 컴백 "'혼' 담았다" [일문일답]" [Apink, today (14th) comeback "contains 'soul'" [Q&A]] (in Korean). X-port News. Archived from the original on March 1, 2022. Retrieved February 14, 2022 – via Naver.
Hwang, Su-yeon (February 17, 2022). "'엠카' 비비지 1위…태연·에이핑크 컴백X미연 코로나19 확진 [종합]" ['Mcar' Viviz 1st place...Taeyeon and Apink comeback X Miyeon confirmed with Corona 19 [Overall]] (in Korean). X-port News. Archived from the original on February 17, 2022. Retrieved February 17, 2022 – via Naver.
web.archive.org
Kim, No-eul (December 22, 2021). "에이핑크 측 "손나은 포함 완전체 2월 컴백, 앨범 형태 미정" [공식입장]" [Apink side "Feb comeback with Son Na-eun, album form undecided" [Official position]] (in Korean). X-port News. Archived from the original on February 14, 2022. Retrieved February 14, 2022 – via Naver.
Jeong, Hee-yeon (January 18, 2022). "손나은, 에이핑크 컴백 활동 불참 "차기작 협의" (전문) [공식]" [Son Na-eun, Apink's comeback absence "Consultation for next project" (Full text) [Official]] (in Korean). Sports Donga. Archived from the original on February 14, 2022. Retrieved February 14, 2022 – via Naver.
Kim, Ji-hye (January 22, 2022). "에이핑크, 2월 14일 컴백 확정..스페셜 앨범 'HORN' 발표(공식)" [Apink, February 14 comeback confirmed..Special album 'HORN' released (official)] (in Korean). Herald Pop. Archived from the original on February 14, 2022. Retrieved February 14, 2022 – via Naver.
"Apink Special Album [HORN]". official.apink2011. January 21, 2022. Archived from the original on February 14, 2022. Retrieved February 14, 2022 – via Instagram.
Kim, Myung-mi (January 26, 2022). "'컴백' 에이핑크, 타이틀곡은 '딜레마'...스페셜 앨범 트랙리스트 공개" ['Comeback' Apink, title song 'Dilemma'...Special album track list released] (in Korean). Newsen. Archived from the original on February 14, 2022. Retrieved February 14, 2022 – via Naver.
Hwang, Hye-jin (February 8, 2022). "'컴백' 에이핑크, 신곡 '딜레마' 포함 전곡 하이라이트 메들리 공개" ['Comeback' Apink unveils highlight medley of all songs including new song 'Dilemma'] (in Korean). Newsen. Archived from the original on February 14, 2022. Retrieved February 14, 2022 – via Naver.
Kwak, Hyeon-su (February 14, 2022). "에이핑크, 신곡 '딜레마' MV 티저 공개...4연속 히트 예고" [Apink releases new song 'Dilemma' MV teaser...4th consecutive hit notice] (in Korean). YTN. Archived from the original on February 14, 2022. Retrieved February 14, 2022 – via Naver.
"2022년 08주차 Album Chart" [Week 8 of 2022 Album Chart] (in Korean). Korea Music Content Association. February 13–19, 2022. Archived from the original on February 24, 2022. Retrieved February 24, 2022 – via Gaon Chart.
"2022년 02월 Album Chart" [February 2022 Album Chart] (in Korean). Korea Music Content Association. Archived from the original on March 10, 2022. Retrieved March 14, 2022 – via Gaon Chart.
Kim, Ye-na (February 14, 2022). "에이핑크, 오늘(14일) 컴백 "'혼' 담았다" [일문일답]" [Apink, today (14th) comeback "contains 'soul'" [Q&A]] (in Korean). X-port News. Archived from the original on March 1, 2022. Retrieved February 14, 2022 – via Naver.
Hwang, Su-yeon (February 17, 2022). "'엠카' 비비지 1위…태연·에이핑크 컴백X미연 코로나19 확진 [종합]" ['Mcar' Viviz 1st place...Taeyeon and Apink comeback X Miyeon confirmed with Corona 19 [Overall]] (in Korean). X-port News. Archived from the original on February 17, 2022. Retrieved February 17, 2022 – via Naver.