[1] Nigel Warburton. Free Speech: A Very Short Introduction. Oxford University Press. 2009-04-22 [2013-02-08]. ISBN 978-0-19-923235-2. [2] Article 19 of the International Covenant on Civil and Political Rights 頁面存檔備份,存於網際網路檔案館, Office of the United Nations High Commissioner for Human Rights, adopted and opened for signature, ratification and accession by UN General Assembly resolution 2200A (XXI) of 16 December 1966, entry into force 23 March 1976 [3] 釋字第364號 http://cons.judicial.gov.tw/jcc/zh-tw/jep03/show?expno=364 [4] 釋字第414 號http://cons.judicial.gov.tw/jcc/zh-tw/jep03/show?expno=414 [5] 釋字第509 號http://cons.judicial.gov.tw/jcc/zh-tw/jep03/show?expno=509 [6] Marlin, Randal. Propaganda and the Ethics of Persuasion. Broadview Press. 2002: 226–227. ISBN 1-55111-376-7. ISBN 978-1551113760. [7] Loewenstein, Karl. Militant Democracy and Fundamental Rights, I. The American Political Science Review. 1937, 31 (3): 417–432. ISSN 0003-0554. doi:10.2307/1948164. [8] Andras Sajo. From Militant Democracy to the Preventive State?. Cardozo law review. 2006, (27): 2225-2294. [9] 釋字第644號http://cons.judicial.gov.tw/jcc/zh-tw/jep03/show?expno=644