"One Direction: Four" (in Finnish). Musiikkituottajat – IFPI Finland. Retrieved 22 November 2014.
ifpicr.cz
"Top 50 Prodejní". Czech Albums. ČNS IFPI. Note: On the chart page, select 201448 on the field besides the word "Zobrazit", and then click over the word to retrieve the correct chart data. Retrieved 1 December 2014.