"IFPI Charts". ifpi.gr. Retrieved September 20, 2022.
ifpicr.cz
ifpicr.cz
"ČNS IFPI" (in Czech). Hitparáda – Digital Top 100 Oficiální. IFPI Czech Republic. Note: Select 14. týden 2018 in the date selector. Retrieved September 2, 2022.
hitparada.ifpicr.cz
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