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Chng Suan Tze v. Minister for Home Affairs [1998] 2 S.L.R. (R.) 525, C.A. (Singapore).

Woodson v. North Carolina 428 U.S. 280 (1976), Supreme Court (United States).

Peter Leyland; Gordon Anthony (2009), "Wednesbury Unreasonableness, Proportionality and Equality", Textbook on Administrative Law, Oxford: Oxford University Press, pp. 284—312 at 308, ISBN 978-0-19-921776-2 {{citation}}: Cite has empty unknown parameter: |1= (help).

Internal Security Act (Cap. 143, 1985 Rev. Ed.) ("Internal Security Act")