What’s Going On? Album Cover, Japanese Version, Accessed December 2, 2013, http://tuneuplyrics.wordpress.com/2013/08/06/b1a4-ige-musun-iriya-nante-doushite-whats-going-on-why-what-for-japanese-version/
Cataloged by: Kaetrena Davis Kendrick.
Who Am I Album Cover, accessed January 15, 2014, from http://k2nblog.tumblr.com/post/73171460517/album-b1a4-who-am-i-2nd-album-who-am
Cataloged by: Kaetrena Davis Kendrick.
이게 무슨 일이야 Album Cover, Accessed December 2, 2013, http://k2nblog.com/mini-album-b1a4-whats-going-on-4th-mini-album/
Cataloged by: Kaetrena Davis Kendrick.