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Burke, Michael. ‘Copper Statues and Pieces of Copper: A Challenge to the Standard Account’. Copper statues and pieces of copper: a challenge to the standard account 52 (1992): n. pag. Web. <http://findit.bham.ac.uk/primo_library/libweb/action/display.do?tabs=detailsTab&ct=display&fn=search&doc=TN_proquest1293500646&indx=1&recIds=TN_proquest1293500646&recIdxs=0&elementId=0&renderMode=poppedOut&displayMode=full&frbrVersion=&frbg=&&dscnt=0&scp.scps=scope%3A%2844BIR_PDA1_DS%29%2Cscope%3A%2844BIR_ETH1_DS%29%2Cscope%3A%2844BIR_LGUI_DS%29%2Cscope%3A%2844BIR_PURE_FT%29%2Cscope%3A%2844BIR_ALEPH_DS%29%2Cscope%3A%2844BIR_MIM_DS+%29%2Cscope%3A%2844BIR_RLIST_DS%29%2Cscope%3A%2844BIR_ML_DS%29%2Cscope%3A%2844BIR_SFX_DS%29%2Cscope%3A%2844BIR_DR1_DS%29%2Cscope%3A%2844BIR_DR2_DS%29%2C44BIR_Ebsco_1%2Cprimo_central_multiple_fe&mode=Basic&vid=44BIR_VU1&srt=rank&tab=local&vl(freeText0)=Copper%20Statues%20and%20Pieces%20of%20Copper%3A%20A%20Challenge%20to%20the%20Standard%20Account&dum=true&dstmp=1505298488192>.
Conee, Earl Brink 1950-. Riddles of Existence [Electronic Resource] : A Guided Tour of Metaphysics. N.p., 2005. Web. <http://findit.bham.ac.uk/primo_library/libweb/action/display.do?tabs=detailsTab&ct=display&fn=search&doc=44BIR_PDA1_DSebr10194211&indx=2&recIds=44BIR_PDA1_DSebr10194211&recIdxs=1&elementId=1&renderMode=poppedOut&displayMode=full&frbrVersion=&frbg=&&dscnt=0&scp.scps=scope%3A%2844BIR_PDA1_DS%29%2Cscope%3A%2844BIR_ETH1_DS%29%2Cscope%3A%2844BIR_LGUI_DS%29%2Cscope%3A%2844BIR_PURE_FT%29%2Cscope%3A%2844BIR_ALEPH_DS%29%2Cscope%3A%2844BIR_MIM_DS+%29%2Cscope%3A%2844BIR_RLIST_DS%29%2Cscope%3A%2844BIR_ML_DS%29%2Cscope%3A%2844BIR_SFX_DS%29%2Cscope%3A%2844BIR_DR1_DS%29%2Cscope%3A%2844BIR_DR2_DS%29%2C44BIR_Ebsco_1%2Cprimo_central_multiple_fe&mode=Basic&vid=44BIR_VU1&srt=rank&tab=local&vl(freeText0)=riddles%20of%20existence&dum=true&dstmp=1505297810314>.
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Earl Conee , and  Theodore Sider. Riddles of Existence : A Guided Tour of Metaphysics: New Edition. OUP Oxford, 2014. Web. <https://ebookcentral.proquest.com/lib/oasispreview/reader.action?docID=1794211>.
Frankfurt, Harry G. ‘Alternate Possibilities and Moral Responsibility’. The Journal of Philosophy 66.23 (1969): n. pag. Web.
Jack, Smart. ‘The Mind/Brain Identity Theory’. n. pag. Web. <https://plato.stanford.edu/entries/mind-identity/>.
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