Items in app 2024 Self-Study in August 2024 Aug 1 2018 Self-Study in June 2018 Jun 1 2017 Self-Study in August 2017 Aug 1 2017 Self-Study in February 2017 Feb 1 2016 Self-Study in June 2016 Jun 1 2016 Self-Study in February 2016 Feb 1