"ČNS IFPI" (Çekçe). Hitparáda – Radio Top 100 Oficiální. IFPI Czech Republic. Note: Change the chart to CZ – RADIO – TOP 100 and insert 201502 into search. Erişim tarihi: 7 Şubat 2015.
"ČNS IFPI" (Çekçe). Hitparáda – Digital Top 100 Oficiální. IFPI Czech Republic. Note: Change the chart to CZ – SINGLES DIGITAL – TOP 100 and insert 201451,52 into search. Erişim tarihi: 7 Şubat 2015.
hitparadask.ifpicr.cz
"ČNS IFPI" (in Slovak). Hitparáda – Radio Top 100 Oficiálna. IFPI Czech Republic. Note: insert 201450 into search. Erişim tarihi: 7 Şubat 2015.
"ČNS IFPI" (Slovakça). Hitparáda – Singles Digital Top 100 Oficiálna. IFPI Czech Republic. Note: Select SINGLES DIGITAL - TOP 100 and insert 201451,52 into search. Erişim tarihi: 7 Şubat 2015.