Somersault Vol 42 2019 January 22, 2016 admin Vol. 42 No. 1 Jan 2019 Vol. 42 No. 2 Mar 2019 Vol. 42 No. 3 May 2019 Vol. 42 No. 4 Jul 2019 Vol. 42 No. 5 Sep 2019 Vol 42 No 6 Nov 2019
