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Kim Myung-mi (May 27, 2022). "'힘쎈여자 강남순' 김정은-김해숙-이유미-옹성우-변우석 캐스팅[공식]" ['Strong Woman Gang Namsoon' Kim Jong-un, Kim Hae-sook, Lee Yu-mi, Ong Seong-wu, Byun Woo-seok Cast [Official]] (به کرهای). Newsen. Archived from the original on May 27, 2022. Retrieved May 27, 2022 – via Naver.
Lee Woo-sung (November 27, 2023). '힘쎈여자 강남순' 빌런 변우석, 프로필 관심 (به کرهای). Geumgang Ilbo. Archived from the original on January 6, 2024. Retrieved January 7, 2024.
Ham Na-yan (September 1, 2021). "김유정X변우석 '20세기 소녀', 제작확정 [공식]" [Kim Yoo-jung X Byun Woo-seok '20th Century Girl', production confirmed [Official]]. Sports Donga (به کرهای). Archived from the original on April 29, 2023. Retrieved September 1, 2021 – via Naver.
Kim Myung-mi (May 27, 2022). "'힘쎈여자 강남순' 김정은-김해숙-이유미-옹성우-변우석 캐스팅[공식]" ['Strong Woman Gang Namsoon' Kim Jong-un, Kim Hae-sook, Lee Yu-mi, Ong Seong-wu, Byun Woo-seok Cast [Official]] (به کرهای). Newsen. Archived from the original on May 27, 2022. Retrieved May 27, 2022 – via Naver.
Kim Myung-mi (May 27, 2022). "'힘쎈여자 강남순' 김정은-김해숙-이유미-옹성우-변우석 캐스팅[공식]" ['Strong Woman Gang Namsoon' Kim Jong-un, Kim Hae-sook, Lee Yu-mi, Ong Seong-wu, Byun Woo-seok Cast [Official]] (به کرهای). Newsen. Archived from the original on May 27, 2022. Retrieved May 27, 2022 – via Naver.