Referensi
↑
↑ "Katy Perry – Unconditionally ". ARIA Top 50 Singles . Diakses tanggal March 23, 2014.
↑ "Katy Perry – Unconditionally " (in German). Ö3 Austria Top 40 . Diakses tanggal March 23, 2014.
1 2 "Katy Perry – Unconditionally " (in Dutch). Ultratop 50 . Diakses tanggal March 23, 2014.
1 2 "Katy Perry – Unconditionally " (in French). Ultratop 50 . Diakses tanggal March 23, 2014.
↑ "Airplay Top 5 – 25.11.2013 – 01.12.2013 ". Bulgarian Association of Music Producers . Diakses tanggal March 23, 2014.
↑ "Katy Perry Chart History (Canadian Hot 100) ". Billboard . Diakses tanggal November 6, 2013.
↑ "Hrvatska Airplay Radio Chart - 2 prosinca 2013" . HRT. December 2, 2013. Diarsipkan dari asli tanggal 2013-12-11. Diakses tanggal December 11, 2013 .
↑ "ČNS IFPI – CZ Radio – Top 100 – 08. týden 2014 " (in Czech). Hitparáda – Radio Top 100 Oficiální. IFPI Czech Republic. Diakses tanggal February 24, 2014.
↑ "Katy Perry – Unconditionally " (dalam bahasa Prancis). Le classement de singles . Diakses tanggal March 23, 2014.
↑ "Archívum – Slágerlisták – MAHASZ " (dalam bahasa Hungaria). Rádiós Top 40 játszási lista . Magyar Hanglemezkiadók Szövetsége. Diakses tanggal March 23, 2014.
↑ "Katy Perry – Unconditionally ". Top Digital Download . Diakses tanggal March 23, 2014.
↑ "Katy Perry" . The Official Lebanese Top 20 . Diakses tanggal March 22, 2014 .
↑ "Top 20 Ingles: Del 9 al 15 de Diciembre del 2013" (dalam bahasa Spanish). Monitor Latino . RadioNotas. December 15, 2013. Diarsipkan dari asli tanggal 2013-12-17. Diakses tanggal December 16, 2013 . Pemeliharaan CS1: Bahasa yang tidak diketahui (link )
↑ "Nederlandse Top 40 – Katy Perry " (dalam bahasa Belanda). Dutch Top 40 . Diakses tanggal March 23, 2014.
↑ "Katy Perry – Unconditionally ". Top 40 Singles. Diakses tanggal March 23, 2014.
↑ ERROR in "Poland": Missing parameters: year. "Listy bestsellerów, wyróżnienia :: Związek Producentów Audio-Video ". Polish Airplay Top 100 . Diakses tanggal March 23, 2014.
↑ "Weekly General Airplay TopHit100 February 10-16, 2014" . TopHit. Diarsipkan dari asli tanggal 2020-10-08. Diakses tanggal March 23, 2014 . ;
↑ "Official Scottish Singles Sales Chart on 28/12/2013 – Top 100 ". Official Charts Company . Diakses tanggal March 23, 2014.
↑ "Katy Perry - Unconditionally SERBIA" . POP TOP LISTA - TOP 50 SRBIJA . Diarsipkan dari asli tanggal 2016-04-30. Diakses tanggal February 16, 2014 . ;
↑ "ČNS IFPI " (dalam bahasa Ceko). Hitparáda – Radio Top 100 Oficiálna. IFPI Czech Republic. Note : insert 201404 into search. Diakses tanggal February 24, 2014.
↑ "EMA Top 10 Airplay: Week Ending 2014-01-14 ". Entertainment Monitoring Africa . Diakses tanggal January 14, 2014.
↑ "Katy Perry – Unconditionally ". Canciones Top 50 . Diakses tanggal March 23, 2014.
↑ "Katy Perry – Unconditionally ". Singles Top 100 . Diakses tanggal March 23, 2014.
↑ "Katy Perry – Unconditionally ". Swiss Singles Chart . Diakses tanggal March 23, 2014.
↑ "Official Singles Chart on 28/12/2013 – Top 100 ". Official Charts Company . Diakses tanggal March 23, 2014.
↑ "Katy Perry Chart History (Hot 100) ". Billboard . Diakses tanggal December 14, 2013.
↑ "Katy Perry Chart History (Adult Contemporary) ". Billboard . Diakses tanggal December 21, 2013.
↑ "Katy Perry Chart History (Adult Pop Songs) ". Billboard . Diakses tanggal November 4, 2013.
↑ "Katy Perry Chart History (Dance Club Songs) ". Billboard . Diakses tanggal November 22, 2013.
↑ "Katy Perry Chart History (Pop Songs) ". Billboard . Diakses tanggal December 14, 2013.
↑ "Pop Rock General" . Record Report . R.R. Digital C.A. December 14, 2013. Diarsipkan dari asli tanggal 2013-12-15. Diakses tanggal December 15, 2013 .
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