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.
Heart to Heart Album Cover, Accessed October 28, 2012, http://www.dkpopnews.net/2011/03/video-4-minutes-heart-to-heart-mv.html
Cataloged by: Kaetrena Davis Kendrick.
4Minutes Left Album Cover, Accessed October 28, 2012, http://www.r3z4prof.me/2011/04/album-%ED%8F%AC%EB%AF%B8%EB%8B%9B4minute-4minutes-left-2011-04-05/
Cataloged by: Kaetrena Davis Kendrick.
Free Style Album Cover, Accessed October 28, 2012, http://hityourmuzik.wordpress.com/2011/08/11/descarga-sencillo-digital-freestyle-4minute/
Cataloged by: Kaetrena Davis Kendrick.
Heart to Heart Japanese Album Cover, Accessed October 28, 2012, http://k2nblog.com/single-4minute-heart-to-heart-japanese-version/
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.
Love Tension Album Cover, Accessed October 28, 2012, http://beautifulkoreanartists.blogspot.com/2012/07/4minute-love-tension-pictures.html
Cataloged by: Kaetrena Davis Kendrick.
Best of 4Minute Album Cover, Accessed October, 29, 2012, http://en.wikipedia.org/wiki/File:Bestof4Minute-Regular.jpeg
Cataloged by: Kaetrena Davis Kendrick.