Rujukan

http://chocchocochocolate.blogspot.com/2011/02/ilmu-sikitsejarah-asal-usul-coklatd.html

http://portalduniaku.koko.my/index.php?option=com_content&view=article&id=219&Itemid=510

http://tangkapgambar.blogspot.com/2012/04/pembungkusan-p2.html

http://www.membuatcoklat.com/2011/03/pembungkusan-coklat.html

http://www.dairyforall.com/package-mater.php

http://infosky.wordpress.com/2008/02/26/aspek-pembungkusan-dalam-pemasaran/

http://inventors.about.com/od/mstartinventors/a/ForrestMars.htm