↑이고은, '시크릿마더' 출연…콧대 높은 강남 초등학생 役[Lee Go-eun appeared in'Secret Mother'... Gangnam elementary school student with high nose]. TenAsia (dalam bahasa Korea). May 3, 2018. Diarsipkan dari asli tanggal 2018-06-12. Diakses tanggal 2021-12-10.
↑꽃파당-이고은(어린개똥역). Naver Blog (dalam bahasa Korea). September 17, 2019.
↑Kim Hyun-sik (March 16, 2021). "이고은, '속아도 꿈결' 캐스팅…함은정 딸 役"[Lee Go-eun, cast'Dream Even if Tricked'... Hahm Eun-jung's daughter]. E-Daily Star (dalam bahasa Korea). Naver. Diakses tanggal March 4, 2021.
