Personal Preference Original Soundtrack Album Cover, Accessed October 28, 2012, http://download-soundtracks.com/movie_soundtracks/personal-taste-soundtrack/
Cataloged by: Kaetrena Davis Kendrick.
Ready Go Album Cover, Accessed October 28, 2012, http://kpopcolorcodedlyrics.wordpress.com/4minute-cover-art/ready-go/
Cataloged by: Kaetrena Davis Kendrick.
Rolling Stars Original Soundtrack Album Cover, Accessed October 28, 2012, http://kpopforeverbrazil.blogspot.com/2012/04/digital-single-2010-4minute-jigudaepyo.html
Cataloged by: Kaetrena Davis Kendrick.
Superstar Album Cover, Accessed October 28, 2012, http://se7enocam-tvxqrox.blogspot.com/2010/07/digital-singlesuperstar-4minute.html
Cataloged by: Kaetrena Davis Kendrick.
The Fugitive: Plan B Original Soundtrack Album Cover, Accessed October 28, 2012, http://k-kless-drama.blogspot.com/2011/01/fugitive-plan-b-runaway-ost-descarga.html
Cataloged by: Kaetrena Davis Kendrick.
Why Album Cover, Accessed October 28, 2012, http://www.allkpop.com/2011/02/4minute-reveal-why-album-covers-track-lists-change-of-release-date
Cataloged by: Kaetrena Davis Kendrick.