"ČNS IFPI" (in Czech). Hitparáda – Radio Top 100 Oficiální. IFPI Czech Republic. Note: Select 44. týden 2009 in the date selector. Retrieved 20 September 2018.
"Classifiche". Musica e dischi (in Italian). Retrieved 2 June 2022. Set "Tipo" on "Singoli". Then, with "Peace" in the "Titolo" field and "Depeche Mode" in "Artista", click "cerca".