1. ^^1 2 3 {{cite web |url=https://www.dramafever.com/news/history-of-korean-national-little-sisters/%7B%5B%7Bnotification.object.url%7D%5D%7D |title=History of Korean "National Little Sisters" |author= |date=November 19, 2012 |website=DramaFever |publisher= |access-date=October 8, 2016 |quote=}}
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3. ^^1 2 3 {{cite web|url=http://entertain.naver.com/read?aid=0000709017&oid=213|title=[리폿@진단] 장나라부터 아이유까지, '국민여동생' 전성시대'|date=June 19, 2015|website=|publisher=Naver|access-date=December 16, 2016|quote=|author=}}
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5. ^{{cite web|author=|url=http://star.mt.co.kr/stview.php?no=2014030916094903621|title='섹션TV' 박신혜, 新 '국민 여동생' 등극 |website=JoongAng Ilbo |date=March 9, 2014 |accessdate=December 31, 2016|language=ko}}
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8. ^{{cite web|url=http://www.koreatimesus.com/s-koreas-national-little-sister-iu-dating-musician-jang-ki-ha/|title=S. Korea’s ‘national little sister’ IU dating musician Jang Ki-ha|date=October 8, 2015|website=|publisher=The Korea Times|access-date=March 11, 2017|quote=|author=}}
9. ^{{cite web|last=Benjamin|first=Jeff|url=http://www.billboard.com/articles/news/475069/iu-21-under-21-2012|title=IU: 21 Under 21 (2012)|date=September 17, 2012|website=Billboard|accessdate=March 13, 2017}}
10. ^{{cite web|last=Oak|first=Jessica|title=IU Exudes Maturity on New LP 'Modern Times'|url=http://www.billboard.com/articles/columns/k-town/5748234/iu-exudes-maturity-on-new-lp-modern-times|website=Billboard|date=October 9, 2013|accessdate=March 13, 2017}}
11. ^{{cite news|last=Kim|first=Ji-young|date=March 22, 2011|title='삼촌'팬 몰고 다니는 국민 여동생 아이유|trans-title='Uncle' fans attending in droves for the Nation's Little Sister, IU|language=Korean|url=http://shindonga.donga.com/docs/magazine/shin/2011/03/22/201103220500002/201103220500002_3.html|newspaper=The Dong-a Ilbo|location=Seoul|accessdate=March 13, 2017}}
12. ^{{cite web|url=http://www.oricon.co.jp/news/2003754/full/|title=韓国の"国民の妹"IU、来春日本デビュー決定|trans-title=The "Nation's Little Sister" of South Korea, IU, to debut in Japan next spring|publisher=Oricon|language=Japanese|date=November 16, 2011|accessdate=March 13, 2017}}
13. ^{{Cite web|last=Kang|first=Hyung-Jun|title=이제는 여신이 된 국민여동생, 아이유를 만나다!|trans-title=Let's meet the nation's little sister, IU, who has now become a goddess!|url=http://www.youngsamsung.com/board/boardView.do?board_seq=38548|website=Samsung|language=Korean|date=July 1, 2014|accessdate=March 13, 2017}}
14. ^{{cite web|url=http://www.sisaweek.com/news/articleView.html?idxno=33265|title=From Moon Geun-young to Hyeri, "Nation's Little Sisters"|date=December 2, 2016|website=|publisher=Young Post|access-date=December 16, 2014|quote=|author= Hong Sook-hee}}
15. ^{{cite web|url=http://m.entertain.naver.com/read?oid=213&aid=0000858548|title=[리폿@이슈] 김유정·김소현·김새론, 연기 되고 외모 되는 10대 트로이카|date=March 26, 2016|website=|publisher=Naver|access-date=May 27, 2017|quote=|author=|}}
16. ^{{cite web|url=http://yp.scmp.com/entertainment/article/105034/korea%E2%80%99s-little-sister-grows-yp-chats-love-moonlight-star-kim-yoo-jung|title=Korea’s little sister grows up: YP chats with Love in the Moonlight star Kim Yoo-jung|date=December 2, 2016|website=|publisher=Young Post|access-date=December 16, 2016|quote=|author=Tiffany Choi}}
17. ^{{cite web|url=https://www.hancinema.net/interview-ji-hyun-woo-still-has-the-nickname-of-the-nation-s-younger-brother-117972.html|title=[Interview] Ji Hyun-woo Still Has the Nickname of "The Nation's Younger Brother"|date=April 24, 2018|website=Dailian}}
18. ^{{Cite web|title=이승기 VS 아이유, '국민동생' 둘의 콘서트 격돌|url=http://entertain.naver.com/read?oid=109&aid=0002662752|website=Naver|publisher=Osen|language=ko|accessdate=October 10, 2017}}
19. ^{{cite web|title=Park Bo-gum: Nation's Little Brother|url=http://www.seoul.co.kr/news/newsView.php?id=20160112022013|website=Seoul Shinmun}}
20. ^{{cite web|title=Yoo Seung Ho Talks About Shedding His “Nation’s Little Brother” Image|url=http://entertain.naver.com/now/read?oid=404&aid=0000143548|website=enews24}}
21. ^{{Cite news|url=http://kpopherald.koreaherald.com/view.php?ud=201702051742101752142_2|title=Stars are students, too|access-date=2017-03-20}}