1. American Chemical Society National Chemistry Week 2014 Web site.http://www.acs.org/content/acs/en/education/outreach/ncw.html(accessed Sep 2014) .
2. NCW 2014 Electronic Resources from ACS.http://www.acs.org/content/acs/en/education/outreach/ncw/educational-resources/2014.html(accessed Sep 2014) .
3. The Sweet Side of Chemistry: Candy.http://www.acs.org/content/dam/acsorg/education/outreach/ncw/celebratingchemistry/ncw-2014-celebrating-chemistry-english.pdf(accessed Sep 2014) .
4. Wikipedia entry for Honeycomb toffee and its other regional names.http://en.wikipedia.org/wiki/Honeycomb_toffee(accessed Sep 2014.
5. YouTube video: The makings of sponge candy.http://www.youtube.com/watch?v=-6uynDLSaSk(accessed Sep 2014) .