Choi, Na-young (August 19, 2021). "'걸스플래닛' 강예서, 정국 닮은꼴? 알고보니 '7번방의 선물' 아역" ["Girls Planet" Kang Ye-seo, Jung-kook look-alike? It turned out to be a child actor in "Miracle in Cell No. 7".]. OSEN (به کرهای). Retrieved December 31, 2021.
naver.com
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Living Economy Team (December 31, 2010). "'웃어요 엄마' 아역 강예서, 큐티엘 공연" ["Smile, mom." Child actor Kang Ye-seo, CutieL's performance.]. OSEN (به کرهای). Archived from the original on December 31, 2021. Retrieved December 31, 2021 – via Naver.
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Kim, Yoo-kyoung (June 12, 2010). "'황금물고기' 이태곤, 소유진과 결혼 위해 프러포즈만 4번" ["Golden Fish" Lee Tae-gon, proposed 4 times to marry So Yu-jin.]. Newsen (به کرهای). Retrieved January 2, 2022.
web.archive.org
Living Economy Team (December 31, 2010). "'웃어요 엄마' 아역 강예서, 큐티엘 공연" ["Smile, mom." Child actor Kang Ye-seo, CutieL's performance.]. OSEN (به کرهای). Archived from the original on December 31, 2021. Retrieved December 31, 2021 – via Naver.
xportsnews.com
Lee, Seul (January 3, 2022). "'걸스플래닛' 케플러, 오늘(3일) 가요계 출격…'퍼스트 임팩트' 발매" ["Girls Planet" Kep1er will be on the K-pop scene today (3rd). Release of "First Impact".]. Xports News (به کرهای). Retrieved January 4, 2022.
