"U.S. Top Digital Albums Chart". Billboard. Nielsen Business Media. December 23, 2010. Archived from the original on December 16, 2010. Retrieved December 24, 2010.
"U.S. R&B/Hip-Hop Albums". Billboard. Nielsen Business Media. December 23, 2010. Archived from the original on December 20, 2010. Retrieved December 24, 2010.
"U.S. Top Digital Albums Chart". Billboard. Nielsen Business Media. December 23, 2010. Archived from the original on December 16, 2010. Retrieved December 24, 2010.
"U.S. R&B/Hip-Hop Albums". Billboard. Nielsen Business Media. December 23, 2010. Archived from the original on December 20, 2010. Retrieved December 24, 2010.