Park, Seo-hyeon (May 14, 2021). "난 너와 함께 가볼래"‥'17일 컴백' 프로미스나인, 음원 하라메 공개 ["I'll go with you." 'Comeback on the 17th' fromis_9, released the highlight medley.]. Herald Pop (in Korean). Retrieved May 26, 2021.
Kim, Na-yul (May 12, 2021). 프로미스나인, '나인 웨이 티켓' 콘셉트 필름 공개..17일 발매 [fromis_9 reveals 9 Way Ticket concept film... It will be released on the 17th.]. Herald Pop (in Korean). Retrieved May 25, 2021.
Seon, Mi-kyoung (May 5, 2021). "프로미스나인, 마스크 쓴 컴백 포토" [fromis_9, comeback photo with a mask.]. OSEN (in Korean). Retrieved May 25, 2021.
Seon, Mi-kyoung (May 6, 2021). "'컴백' 프로미스나인 박지원·이채영·백지헌, 3色 마스크 소화 방식" ['Comeback' fromis_9 Park Ji-won, Lee Chae-young, Baek Ji-heon, 3-color mask.]. OSEN (in Korean). Retrieved May 25, 2021.
Jang, Woo-young (May 7, 2021). "'17일 컴백' 프로미스나인, 노지선·송하영·이나경 오피셜 포토 공개" ['Comeback on the 17th' fromis_9, Roh Ji-sun, Song Ha-young, and Lee Na-kyung's official photos will be released.]. OSEN (in Korean). Retrieved May 25, 2021.
Seon, Mi-kyoung (May 9, 2021). "'컴백' 프로미스나인 노지선·백지헌·송하영, 몽환 청순 러블리!" ['Comeback' fromis_9 Noh Ji-sun, Baek Ji-heon, Song Ha-young, dreamy innocent lovely!]. OSEN (in Korean). Retrieved May 25, 2021.
Seon, Mi-kyoung (May 10, 2021). "'컴백' 프로미스나인 장규리·이채영·박지원, 물오른 비주얼" ['Comeback' fromis_9 Jang Gyu-ri, Lee Chae-young, Park Ji-won, and their good looks.]. OSEN (in Korean). Retrieved May 25, 2021.
Park, So-young (May 13, 2021). "프로미스나인, 타이틀곡='WE GO'..코로나 시국 속 상상여행 떠난다" [fromis_9, title track = 'WE GO'. I'm going on an imaginary trip in the face of Corona.]. OSEN (in Korean). Retrieved May 26, 2021.
Park, So-young (May 15, 2021). "프로미스나인, 신곡 MV=합성?..상상 속 랜선여행 '상큼'" [fromis_9's new song MV = Synthesis? "Fresh" is an imaginary online trip.]. OSEN (in Korean). Retrieved May 26, 2021.
Ji, Min-kyoung (May 16, 2021). "프로미스나인, 타이틀곡 'WE GO' MV 티저 공개..강렬한 중독성" [fromis_9 released a teaser for the title track 'WE GO' MV. Very addictive.]. OSEN (in Korean). Retrieved May 26, 2021.
Lee, Min-ji (May 17, 2021). "프로미스나인 "방향성 잡아가는 이정표 같은 앨범이었으면"" [fromis_9, "If it was an album like a directional milestone."]. Newsen (in Korean). Retrieved May 25, 2021.
Lee, Min-ji (May 4, 2021). "프로미스나인, 17일 싱글 '9 WAY TICKET' 발매…8개월만 컴백" [fromis_9 will release their single '9 WAY TICKET' on the 17th. Comeback after 8 months.]. Newsen (in Korean). Retrieved May 25, 2021.
Lee, Min-ji (May 11, 2021). "프로미스나인 이새롬·이서연·이나경, 이국적 감성 물씬 오피셜 포토" [fromis_9's Lee Saerom, Lee Seoyeon, Lee Na-kyung, official photo with exotic sentiments.]. Newsen (in Korean). Retrieved May 25, 2021.
Lee, Min-ji (May 14, 2021). "프로미스나인표 힐링 여행, 이유 있는 '9 WAY TICKET' 트랙" [fromis_9 healing trip, reasonable track called '9 WAY TICKET'.]. Newsen (in Korean). Retrieved May 26, 2021.
Hwang, Hye-jin (May 17, 2021). ""너와 함께 가볼래" 프로미스나인, 청량한 랜선 여행 'WE GO'" ["I'll go with you." fromis_9, a refreshing online trip, 'WE GO'.]. Newsen (in Korean). Retrieved May 26, 2021.
