"ČNS IFPI" (in Czech). Hitparáda – Radio Top 100 Oficiální. IFPI Czech Republic. Note: Select 26. týden 2019 in the date selector. Retrieved July 1, 2019.
"ČNS IFPI" (in Czech). Hitparáda – Digital Top 100 Oficiální. IFPI Czech Republic. Note: Select 11. týden 2019 in the date selector. Retrieved March 19, 2019.
hitparada.ifpicr.cz
"ČNS IFPI" (in Slovak). Hitparáda – Singles Digital Top 100 Oficiálna. IFPI Czech Republic. Note: Select SINGLES DIGITAL - TOP 100 and insert 201911 into search. Retrieved March 19, 2019.