"ČNS IFPI" (in Czech). Hitparáda – Radio Top 100 Oficiální. IFPI Czech Republic. Note: Change the chart to CZ – RADIO – TOP 100 and insert 201551 into search. Retrieved 8 January 2017.
"ČNS IFPI" (in Czech). Hitparáda – Digital Top 100 Oficiální. IFPI Czech Republic. Note: Change the chart to CZ – SINGLES DIGITAL – TOP 100 and insert 20161 into search.
hitparadask.ifpicr.cz
"ČNS IFPI" (in Slovak). Hitparáda – Radio Top 100 Oficiálna. IFPI Czech Republic. Note: insert 201602 into search. Retrieved 8 January 2017.
"ČNS IFPI" (in Slovak). Hitparáda – Singles Digital Top 100 Oficiálna. IFPI Czech Republic. Note: Select SINGLES DIGITAL - TOP 100 and insert 201602 into search. Retrieved 8 January 2017.
"Latvijas Top 40". Latvijas Radio. 24 January 2016. Archived from the original on 7 February 2016. Retrieved 24 January 2016.{{cite web}}: CS1 maint: bot: original URL status unknown (link)