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N. Parpworth, Constitutional and administrative law, Ninth edition., vol. Core text series. Oxford, United Kingdom: Oxford University Press, 2016.
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K. Syrett, The foundations of public law: principles and problems of power in the British constitution, Second edition. London: Palgrave, 2014 [Online]. Available: https://ebookcentral.proquest.com/lib/uea/detail.action?docID=4764109
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C. Turpin and A. Tomkins, British government and the constitution: text and materials, 7th ed., vol. The law in context series. Cambridge: Cambridge University Press, 2012.
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A. W. Bradley, K. D. Ewing, and C. Knight, Constitutional and administrative law, Sixteenth edition. Harlow, England: Pearson, 2015 [Online]. Available: http://lib.myilibrary.com/browse/open.asp?id=639987&entityid=https://login.uea.ac.uk/entity
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A. Tomkins, Public law, vol. Clarendon law series. Oxford: Oxford University Press, 2003.