Items in communication 2018 Self-Study in June 2018 Jun 1 2017 Self-Study in August 2017 Aug 1 2017 Self-Study in May 2017 May 1 2016 Self-Study in July 2016 Jul 4 2016 Self-Study in February 2016 Feb 1 2016 Self-Study in January 2016 Jan 1