1. Bible Hub. http://biblehub.com/hebrew/6638.htm . Accessed 5 Nov 2015
2. Bible Hub. http://biblehub.com/hebrew/1216.htm . Accessed 5 Nov 2015
3. Liddell HG, Scott R (1940) A Greek–English lexicon. Clarendon, Oxford
4. “On Medicine—De medicina”. World Digital Library. http://www.wdl.org/en/item/11618/ . Accessed 4 Nov 2015
5. http://penelope.uchicago.edu/Thayer/L/Roman/Texts/Celsus/3*.html . Accessed 28 Dec 2015