"2012년 Album Chart". Gaon Music Chart (in Korean). Retrieved February 14, 2021.
Cumulative sales of Busker Busker 2nd Album:
"2013년 Album Chart". Gaon Music Chart (in Korean). Retrieved February 14, 2021.
Cumulative sales of Busker Busker 1st Wrap Up Album:
"2012년 Album Chart". Gaon Music Chart (in Korean). Retrieved February 14, 2021.
"Gaon Digital Chart" (in Korean). Gaon Music Chart. Korea Music Content Industry Association. Archived from the original on February 4, 2015. Retrieved May 16, 2016.
"Gaon Digital Chart" (in Korean). Gaon Music Chart. Korea Music Content Industry Association. Archived from the original on February 4, 2015. Retrieved May 16, 2016.