"ČNS IFPI" (Çekçe). Hitparáda – Radio Top 100 Oficiální. IFPI Czech Republic. Note: Change the chart to CZ – RADIO – TOP 100 and insert 20126 into search. Erişim tarihi: 14 Şubat 2011.
hitparadask.ifpicr.cz
"ČNS IFPI" (Slovakça). Hitparáda – Radio Top 100 Oficiálna. IFPI Czech Republic. Note: insert 201146 into search. Erişim tarihi: 26 Ekim 2011.