"ČNS IFPI" (Çekçe). Hitparáda – Radio Top 100 Oficiální. IFPI Czech Republic. Note: Change the chart to CZ – RADIO – TOP 100 and insert 201821 into search. Erişim tarihi: 28 Mayıs 2018.
"ČNS IFPI" (Çekçe). Hitparáda – Digital Top 100 Oficiální. IFPI Czech Republic. Note: Change the chart to CZ – SINGLES DIGITAL – TOP 100 and insert 201811 into search. Erişim tarihi: 14 Aralık 2018.
"ČNS IFPI" (in Slovak). Hitparáda – Radio Top 100 Oficiálna. IFPI Czech Republic. Note: insert 201826 into search. Erişim tarihi: 3 Temmuz 2018.
"ČNS IFPI" (Slovakça). Hitparáda – Singles Digital Top 100 Oficiálna. IFPI Czech Republic. Note: Select SINGLES DIGITAL - TOP 100 and insert 201809 into search. Erişim tarihi: 6 Mart 2018.