Anette Brömdal: Intersex – A Challenge for Human Rights and Citizenship Rights. Political Science, Master’s Thesis Spring Session 2006, Södertörn University College
S. 65 (im pdf auf S. 73):

South Africa is the ‘only’ country in the world, at the time of writing, that has
included Intersex as a sex in its legal system.

http://www.diva-portal.org/diva/getDocument?urn_nbn_se_sh_diva-890-1__fulltext.pdf