September (球風火歌曲)
參考來源

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1 2  . British Phonographic Industry.   [October 25, 2024] （英语）.
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↑  . InfoDisc. March 2, 1979  [December 22, 2019] （法语）.
↑  "The Irish Charts – Search Results – September". Irish Singles Chart.  （英語）.
↑   "Nederlandse Top 40 – week 4, 1979". Dutch Top 40  .
↑  "Dutchcharts.nl – Earth, Wind & Fire – September". Single Top 100.  （荷蘭語）.
↑  "Charts.nz – Earth, Wind & Fire – September". Top 40 Singles.  （英語）.
↑  "Norwegiancharts.com – Earth, Wind & Fire – September". VG-lista.  （挪威語）.
↑  . South African Rock Lists.   [June 2, 2018].
↑  "Swedishcharts.com – Earth, Wind & Fire – September". Singles Top 100.  （英語）.
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↑  .   [October 24, 2017]. （原始内容存档于February 14, 2015）.
↑  "Offiziellecharts.de – Earth, Wind & Fire – September". GfK Entertainment charts.     （德語）.
↑  "Earth Wind Fire – Chart history". Billboard.  Retrieved October 1, 2024. （英語）.
↑  . RPM (雜誌). Library and Archives Canada. July 17, 2013  [June 2, 2018].
↑  . www.uk-charts.top-source.info.
↑  . Musicoutfitters.com.   [October 13, 2016].
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↑  . Billboard. January 2, 2013  [October 12, 2021].
↑  .   [October 24, 2017]. （原始内容存档于July 13, 2014）.
↑   (PDF). Australian Recording Industry Association.   [November 30, 2023] （英语）.
↑  . IFPI Danmark.   [January 23, 2018] （丹麦语）.
↑  . Bundesverband Musikindustrie.   [February 2, 2023] （德语）.
↑  . Federazione Industria Musicale Italiana.   [July 8, 2024] （意大利语）.
↑  . Recording Industry Association of Japan.   [February 28, 2021] （日语）.  在下拉菜单选择“2013年4月”
↑  . Asociación Mexicana de Productores de Fonogramas y Videogramas.   [October 24, 2020] （西班牙语）.  在“ARTISTA”栏以下的框内输入“Earth Wind & Fire”&nbsp；并在“column heading”栏以下的框内输入“September”。.
↑  . Recorded Music NZ.   [2024-11-20] （英语）.
↑  . El portal de Música. Productores de Música de España.   [July 12, 2024] （西班牙语）.
↑  . Recording Industry Association of America.   [September 22, 2020] （英语）.
↑  "Ultratop.be – Earth, Wind & Fire – September 99 (Phats & Small Remix)". Ultratop 50.    （荷蘭語）.
↑  Danish Singles Chart. August 27, 1999.
↑   (PDF). Music & Media. August 7, 1999  [June 26, 2018].
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↑  "Earth, Wind & Fire – September 99 (Phats & Small Remix)". GfK Entertainment charts.    （德語）.
↑  . Dagbladid Visir (Dagblaðið Vísir).   [July 13, 2018]. （原始内容存档于January 27, 2023） （冰岛语）.
↑  "The Irish Charts – Search Results – September". Irish Singles Chart.  （英語）.
↑  "Nederlandse Top 40 – Earth, Wind & Fire search results" Dutch Top 40.  （荷蘭語）.
↑  "Dutchcharts.nl – Earth, Wind & Fire – September 99 (Phats & Small Remix)". Single Top 100.  （荷蘭語）.
↑  "Norwegiancharts.com – Earth, Wind & Fire – September 99 (Phats & Small Remix)". VG-lista.  （挪威語）.
↑  "Official Scottish Singles Sales Chart Top 100". Official Charts Company.  （英語）.
↑  "Swedishcharts.com – Earth, Wind & Fire – September 99 (Phats & Small Remix)". Singles Top 100.  （英語）.
↑  "Swisscharts.com – Earth, Wind & Fire – September 99 (Phats & Small Remix)". Swiss Singles Chart.  （英語）.
↑  "Official Singles Chart Top 100". Official Charts Company.  （英語）.
↑  "Official Dance Singles Chart Top 40". Official Charts Company.  （英語）.
↑  "Lescharts.com – Earth, Wind & Fire – September". Les classement single.  （法語）.
↑   (PDF). Music Week: 32. January 22, 2000  [April 24, 2022].
↑  . Dutch Top 40.   [May 12, 2022] （荷兰语）.
↑  Jones, Steve. . USA Today. June 19, 2007.
↑  Monger Christopher, James. . allmusic.com. Allmusic.
↑  Joseph, Mike. . popmatters.com. Popmatters. June 18, 2007.
↑  Arnold, Chuck; Stoynoff, Natasha; Herndon, Jessica. . People. April 16, 2007.