"ČNS IFPI" (in Czech). Hitparáda – Radio Top 100 Oficiální. IFPI Czech Republic. Note: Change the chart to CZ – RADIO – TOP 100 and insert 200746 into search. Retrieved October 30, 2012.
hitparadask.ifpicr.cz
"ČNS IFPI" (in Slovak). Hitparáda – Radio Top 100 Oficiálna. IFPI Czech Republic. Note: insert 200736 into search. Retrieved October 30, 2012.
Molanphy, Chris (May 21, 2022). "Flip It and Reverse It Edition". Hit Parade | Music History and Music Trivia (Podcast). Slate. Retrieved March 28, 2024.