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^"동방신기 vs 빅뱅 vs 원더걸스 얽히고 설킨 서울가요대상 후폭풍" ['TVXQ vs. Big Bang vs. Wonder Girls'... The tangled aftermath of the Seoul Music Awards]. Kuki News (in Korean). February 13, 2009. Retrieved August 14, 2024.
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^Cumulative sales for The Wonder Years: Trilogy: 67,000 (2008) + 15,962 (2009) + 482 (2011) + 1,091 (2012)
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^"JYP측 "2년 된 원걸 '노바디', 加차트 4위 놀랍다"" [JYP: "2-year-old Wonder Girls' 'Nobody', 4th place on the charts is surprising"]. Star News (in Korean). Naver. March 20, 2011. Retrieved September 23, 2024.
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^ abBenjamin, Jeff (February 1, 2012). "Girls' Generation Makes Big U.S. Debut on 'Letterman'". Billboard. Retrieved September 9, 2017. 'Nobody,' which has sold 78,000 downloads and 42,000 physical singles, according to Nielsen SoundScan