"'낮과 밤' 이청아 출연 검토…남궁민과 호흡하나[공식입장]" ['Day and Night' Lee Cheong-ah appearance review… Breathing with Nam Gung-min [Official Position]]. Hankooki. March 2, 2020. Archived from the original on December 14, 2020. Retrieved November 26, 2020.
Kim, Jin-seok (February 13, 2020). "[단독]설현, 남궁민과 tvN '낮과 밤' 주인공" [[Exclusive] Seolhyun, Nam Gung-min and tvN'Day and Night' main characters]. M News Daily Sport (in Korean).
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Park, Jin-young (April 16, 2020). "남궁민·설현·이청아 '낮과 밤', 17일 대본리딩...5월 촬영 돌입" [Nam Gung-min, Seol-hyun, and Lee Cheong-a'Day and Night', script reading on the 17th...]. Joy News.
Shin, Young-eun (June 15, 2020). "윤경호, tvN 드라마 '낮과 밤' 합류…남궁민과 호흡" [Yoon Kyung-ho joins tvN drama'Day and Night'... Breathing with Nam Gung Min]. Daily Economy Star.
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Han, Hae-seon (December 30, 2019). "남궁민·한예슬 측 "'낮과 밤' 출연 제안 받고 검토 중"(공식)" [Nam Gung-min and Han Ye-seul's "'Day and Night' appearance proposal and under review" (official)]. Star News.
Jang, Eun-song (October 6, 2020). "남궁민X설현X이청아, '낮과밤' 출연 확정..'믿보배' 열연 기대" [Nam Gung-min x Seolhyun x Lee Cheong-ah confirmed to appear in'Day and Night'...]. Star News.
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Sun, Mi-kyung (November 29, 2020). "안시하, '낮과 밤' 합류..'날아라 개천용' 이어 열일 행보[공식]" [Siha An, joins'Day and Night'..'Fly, Gaecheonyong' followed by 10 days [Official]]. Osen (in Korean). Retrieved November 18, 2020.
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"낮과 밤:시청률" [Day and night: ratings]. Naver. Retrieved January 20, 2021.
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Seo, Ji-hyun (April 20, 2020). "이신영 측 "'낮과 밤' 대본 리딩 참석, 첫 촬영 미정"(공식)" [Lee Shin-young's "Attend the'Day and Night' script reading, first filming undecided" (official)]. Newsen. Retrieved November 26, 2020.
Lee, Min-ji (June 15, 2020). "윤경호, '낮과 밤' 출연 확정…남궁민과 호흡(공식)" [Yoon Kyung-ho confirmed to appear in'Day and Night'... Breathing with Nam Gung-min (Official)]. Newsen. Retrieved November 26, 2020.
Lee, Ji-eun (October 6, 2020). "남궁민·김설현·이청아, tvN '낮과 밤' 캐스팅 확정…내달 30일 첫 방송" [Nam Gung-min, Kim Seol-hyun, Lee Cheong-ah, tvN'Day and Night' cast confirmed... First broadcast on the 30th of next month]. NewsPim (in Korean).
"김태우, 새 드라마 '낮과 밤' 합류…남궁민·김설현과 호흡" [Taewoo Kim joins the new drama'Day and Night'... Breath with Nam Gung-min and Kim Seol-hyun]. Pickcon. October 11, 2020.
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"'낮과 밤' 이청아 출연 검토…남궁민과 호흡하나[공식입장]" ['Day and Night' Lee Cheong-ah appearance review… Breathing with Nam Gung-min [Official Position]]. Hankooki. March 2, 2020. Archived from the original on December 14, 2020. Retrieved November 26, 2020.
