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Ayer, A. J. (1954). Philosophical essays. Macmillan.
Bennett, J. (2001). Secondary Qualities. In Learning from six philosophers: Descartes, Spinoza, Leibniz, Locke, Berkeley, Hume (pp. 74–91). Clarendon. https://doi.org/10.1093/0198250924.003.0005
Burke, Michael. (1992). 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. 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-. (2005). Riddles of existence [electronic resource] : a guided tour of metaphysics. 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
Descartes, R., & Cottingham, J. (1996). Meditations on first philosophy: with selections from the objections and replies: Vol. Cambridge texts in the history of philosophy (Rev. ed). Cambridge University Press.
Descartes, R., & Cottingham, J. (2013). Meditations on first philosophy: with selections from the objections and replies : a Latin-English edition. Cambridge University Press. https://www.cambridge.org/core/books/rene-descartes-meditations-on-first-philosophy/35981334D95E74F1D4AD4EADCD796920
Earl Conee , and  Theodore Sider. (2014). Riddles of Existence : A Guided Tour of Metaphysics: New Edition. OUP Oxford. https://ebookcentral.proquest.com/lib/oasispreview/reader.action?docID=1794211
Frankfurt, H. G. (1969). Alternate Possibilities and Moral Responsibility. The Journal of Philosophy, 66(23). https://doi.org/10.2307/2023833
Jack, Smart. (n.d.). The Mind/Brain Identity Theory. https://plato.stanford.edu/entries/mind-identity/
Locke, J., & Woolhouse, R. S. (1997). An essay concerning human understanding: Vol. Penguin classics. Penguin.
Nagel, T. (1974). What Is It Like to Be a Bat? The Philosophical Review, 83(4). https://doi.org/10.2307/2183914
Shafer-Landau, R. (2013a). Ethical theory: an anthology (2nd ed, Vol. 17). Wiley-Blackwell. http://sfxeu07.hosted.exlibrisgroup.com/bham?isbn=9781280878435%20
Shafer-Landau, R. (2013b). Ethical theory: an anthology (2nd ed, Vol. 17). Wiley-Blackwell. http://sfxeu07.hosted.exlibrisgroup.com/bham?isbn=9781280878435%20
Shafer-Landau, R. (2013c). Ethical theory: an anthology (2nd ed, Vol. 17). Wiley-Blackwell. http://sfxeu07.hosted.exlibrisgroup.com/bham?isbn=9781280878435%20
Shafer-Landau, R. (2013d). Ethical theory: an anthology (2nd ed, Vol. 17). Wiley-Blackwell. http://sfxeu07.hosted.exlibrisgroup.com/bham?isbn=9781280878435%20
Shafer-Landau, R. (2013e). Ethical theory: an anthology (2nd ed, Vol. 17). Wiley-Blackwell. http://sfxeu07.hosted.exlibrisgroup.com/bham?isbn=9781280878435%20