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Schwartz MD. Quantum Field Theory and the Standard Model. Cambridge University Press; 2013.
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Srednicki M. Quantum Field Theory. Cambridge University Press; 2007.
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Peskin ME, Schroeder DV, Taylor & Francis. An Introduction to Quantum Field Theory. Student economy edition. Westview Press, a member of the Perseus Books Group; 2016. http://ezproxy.library.qmul.ac.uk/login?url=https://www.taylorfrancis.com/books/9780429494178
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Mandl F, Shaw G. Quantum Field Theory. 2nd Edition. John Wiley and Sons Ltd; 2010.