Jackson, Morgan D. (17 December 2012). "You Must Bee Joking". Biodiversity in Focus. Archived from the original on 25 December 2012. Retrieved 3 January 2013.
Jackson, Morgan D. (17 December 2012). "You Must Bee Joking". Biodiversity in Focus. Archived from the original on 25 December 2012. Retrieved 3 January 2013.