"2020년 07월Digital Chart" [July 2020 Digital Chart] (in Korean). Korea Music Content Association. Archived from the original on October 20, 2020. Retrieved November 2, 2021 – via Gaon Chart.
hankookilbo.com
Kim, Han-na (July 16, 2020). "전소미, 과감한 매혹적 스타일...티저 속 성숙한 분위기 발산" [Jeon So-mi, bold and captivating style. Give off a mature vibe in the teaser.]. Hankook Ilbo (in Korean). Retrieved August 5, 2021.
Lee, Ho-yeon (July 18, 2020). "'컴백 D-4' 전소미, 스타일링보다 화려한 미모" ['Comeback D-4' Jeon So-mi, more gorgeous than styling.]. Hankook Ilbo (in Korean). Retrieved August 5, 2021.
Hong, Hye-min (July 22, 2020). "전소미, 다시 돌아왔다" [Jeon So-mi, you're back.]. Hankook Ilbo (in Korean). Retrieved August 5, 2021.
Hong, Hye-min (July 17, 2020). "전소미, 단발 파격 변신?...'What You Waiting For' 티저 공개" [Jeon So-mi, a shocking transformation with short hair? The teaser for "What You Waiting For" released.]. Hankook Ilbo (in Korean). Retrieved August 5, 2021.
Kim, Han-na (July 20, 2020). "전소미, 드레스 입고 운동장 트랙에?...신곡 2차 티저 영상 공개" [Jeon So-mi, wearing a dress on the track on the playground? Second teaser video for the new song released.]. Hankook Ilbo (in Korean). Retrieved August 5, 2021.
Jeong, Han-byeol (August 6, 2020). "'엠카' 전소미, '왓 유 웨이팅 포'로 1위…레몬 먹으며 앙코르 무대" ['M Countdown' Jeon So-mi, wins first place with 'What You Waiting For'. Eating lemon while on encore stage.]. Hankook Ilbo (in Korean). Retrieved August 5, 2021.
Kim, Han-na (August 7, 2020). "전소미, 데뷔 후 첫 음악방송 1위..."솜뭉치들 사랑해요"" [Jeon So-mi, the first time to get the first place on a music show. "I love you, Som-mungchis."]. Hankook Ilbo (in Korean). Retrieved August 5, 2021.
Choi, Joo-won (July 14, 2020). "전소미, 7월 컴백대전 합류 '막강 파워걸이 온다'" [Jeon So-mi will join the comeback battle in July. 'Here comes the powerful girl.']. Ilgan Sports (in Korean). Retrieved August 5, 2021.
Hwang, Jee-young (July 15, 2020). "전소미, 22일 컴백 타이틀은 'WHAT YOU WAITING FOR'" [Jeon So-mi, the comeback title on the 22nd is "WHAT YOU WAITING FOR".]. Ilgan Sports (in Korean). Retrieved August 5, 2021.
Kim, Yeon-ji (July 21, 2020). "전소미, 'What You Waiting For' MV 3차 티저 공개" [Jeon So-mi, "What You Waiting For" MV third teaser released.]. Ilgan Sports (in Korean). Retrieved August 5, 2021.
Hwang, Jee-young (July 22, 2020). ""밝은 척 못해"…전소미, 끝이 보이는 사랑 노래" ["I can't pretend to be bright." Jeon So-mi, a love song with an end.]. Ilgan Sports (in Korean). Retrieved August 5, 2021.
Kwak, Hyeon-soo (July 30, 2020). "'아이돌 라디오' 전소미 "'What You Waiting For' 뮤비 속 1인 8역 도전"" ['Idol Radio' Jeon So-mi "Challenge 8 roles per person in the 'What You Waiting For' music video"]. Sports Donga (in Korean). Archived from the original on March 13, 2023. Retrieved March 13, 2023.
Choi, Hee-jae (July 22, 2020). "전소미, 신곡 'What You Waiting For' 오늘(22일) 발매…작사·작곡 참여" [Jeon So-mi, new song 'What You Waiting For' released today (22nd)... Participation in writing and composing]. Xports News (in Korean). Retrieved March 17, 2023.
Yoo, Byung-cheol (July 22, 2020). "'파격 변신' 전소미, 22일 'What You Waiting For' 발매" ['Unprecedented Transformation' Jeon So-mi releases 'What You Waiting For' on the 22nd]. Korea Economy (in Korean). Retrieved March 17, 2023.
Lee, Min-ji (July 22, 2020). ""어쩔거야 날" 전소미, 고백을 기다리는 'What You Waiting For'[들어보고서]" [“What should I do?” Jeon So-mi, waiting for a confession, 'What You Waiting For' [Listen]]. Newsen (in Korean). Retrieved March 17, 2023.
Kwak, Hyeon-soo (July 30, 2020). "'아이돌 라디오' 전소미 "'What You Waiting For' 뮤비 속 1인 8역 도전"" ['Idol Radio' Jeon So-mi "Challenge 8 roles per person in the 'What You Waiting For' music video"]. Sports Donga (in Korean). Archived from the original on March 13, 2023. Retrieved March 13, 2023.
"2020년 07월Digital Chart" [July 2020 Digital Chart] (in Korean). Korea Music Content Association. Archived from the original on October 20, 2020. Retrieved November 2, 2021 – via Gaon Chart.