Lee Jun-hyun (May 5, 2021). "변우석X강미나, '꽃 피면 달 생각하고' 합류…두근두근 청춘 4인방 라인업 완성" [Byun Woo-seok X Kang Min-a joins 'When Flowers Bloom, Thinking of the Moon'... Completion of the lineup of four throbbing youth]. hankyung (dalam bahasa Korea). Diakses tanggal May 5, 2021.
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 (dalam bahasa Korea). Diakses tanggal September 1, 2021 – via Naver.
Kim Myung-mi (May 27, 2022). "힘쎈여자 강남순' 김정은-김해숙-이유미-옹성우-변우석 캐스팅[공식]" [Strong Woman Gangnam Soon’ Kim Jong-un, Kim Hae-sook, Lee Yu-mi, Ong Seong-wu, Byun Woo-seok Cast [Official]] (dalam bahasa Korea). Newsen. Diakses tanggal May 27, 2022 – via Naver.