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.
God of Study Original Soundtrack Album Cover, Accessed October 28, 2012, http://mariasilitonga.blogspot.com/2010/09/god-of-study-korean-drama.html
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.
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.
Hit Your Heart Album Cover, Accessed October 28, 2012, http://i-pluzzone.blogspot.com/2011/07/4minute-hit-your-heart-itunes-plus-aac.html
Cataloged by: Kaetrena Davis Kendrick.
Hot Issue Album Cover, Accessed October 28, 2012, http://koreanalbumart.blogspot.com/2011/01/4minute-albums.html
Cataloged by: Kaetrena Davis Kendrick.
I My Me Mine Album Cover, Accessed October 28, 2012, http://www.yesasia.com/us/i-my-me-mine-normal-edition-japan-version/1022762636-0-0-0-en/info.html
Cataloged by: Kaetrena Davis Kendrick.
It’s Ok, Daddy’s Girl Original Soundtrack Album Cover, Accessed October 28, 2012, http://www.pingbook.com/music/album.php?id=2121
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.
Muzik Japanese Album Cover, Accessed October 28, 2012, http://tiarapersia.wordpress.com/2010/05/05/4minute-muzik-japanese-version/
Cataloged by: Kaetrena Davis Kendrick.