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參考文獻

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↑ Peak positions for singles in Scotland:
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For "Hasta Luego": . Official Charts Company. 3 May 2018  [2023-03-16]. （原始内容存档于2020-01-11）.
For "I Wish You Were Here": . Official Charts Company. 27 September 2018  [2023-03-16]. （原始内容存档于2022-07-13）.
For "Told You So": . Official Charts Company. 22 March 2019  [2023-03-16]. （原始内容存档于2020-11-15）.
For "Younger": . Official Charts Company. 13 September 2019  [2023-03-16]. （原始内容存档于2023-04-08）.
For "Million Ways": . Official Charts Company. 16 November 2019  [2023-03-16]. （原始内容存档于2023-05-20）.
For "Me Because of You": . Official Charts Company. 21 February 2020  [2023-03-16]. （原始内容存档于2020-06-10）.
↑  . irish-charts.com.   [17 November 2018]. （原始内容存档于2020-08-12）.
↑  . BreakTudo.   [4 December 2017]. （原始内容存档于2022-01-18）.
↑  . Apple Music.   [6 June 2019]. （原始内容存档于2020-09-13）.
↑  . Apple Music.   [1 May 2020]. （原始内容存档于2022-03-31）.
↑  . Out Now Magazine.   [26 May 2020]. （原始内容存档于2021-01-25）.
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↑  Rossi, Rosemary. "Teen Choice Awards 2019: The Complete Winners List" （页面存档备份，存于）. 11 August 2019.