"ČNS IFPI" (in Czech). Hitparáda – Radio Top 100 Oficiální. IFPI Czech Republic. Note: Select 32. týden 2018 in the date selector. Retrieved August 13, 2018.
"ČNS IFPI" (in Czech). Hitparáda – Digital Top 100 Oficiální. IFPI Czech Republic. Note: Select 22. týden 2018 in the date selector. Retrieved June 7, 2018.
hitparada.ifpicr.cz
"ČNS IFPI" (in Slovak). Hitparáda – Radio Top 100 Oficiálna. IFPI Czech Republic. Note: insert 201914 into search. Retrieved April 9, 2019.
"ČNS IFPI" (in Slovak). Hitparáda – Singles Digital Top 100 Oficiálna. IFPI Czech Republic. Note: Select SINGLES DIGITAL - TOP 100 and insert 201818 into search. Retrieved May 7, 2018.
Arvunescu, Victor (December 23, 2018). "Top Airplay 100 – Crăciunul aduce un nou lider!" [Top Airplay 100 – Christmas brings a new leader!] (in Romanian). Un site de muzică. Archived from the original on December 23, 2018. Retrieved December 23, 2018.
Arvunescu, Victor (December 23, 2018). "Top Airplay 100 – Crăciunul aduce un nou lider!" [Top Airplay 100 – Christmas brings a new leader!] (in Romanian). Un site de muzică. Archived from the original on December 23, 2018. Retrieved December 23, 2018.