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Jo Ji-young (September 14, 2022). "네가 왜 거기서 나와?"…'정직한 후보2' 유준상X김재화X온주완, '주둥이' 세계관 빛낸 특급 카메오" [Why are you here?"... 'Honest Candidate 2' Yoo Jun-sang X Kim Jae-hwa X On Joo-wan, a special cameo that shines in the world view of 'Snout'] (in Korean). Sports Chosun. Archived from the original on October 27, 2022. Retrieved September 14, 2022 – via Naver.
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Kim Hyeon-jeong (April 15, 2022). "5년만 돌아온 '모래시계', 민우혁·온주완·조형균 캐스팅 [공식입장]" [Hourglass' returns after 5 years, casting Min Woo-hyuk, On Joo-wan, and Jo Hyeong-gyun [Official Position]] (in Korean). Xports News. Archived from the original on August 27, 2023. Retrieved April 15, 2022 – via Naver.
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