Visualization System and Units World Network, Yemen Homepage Visualization System and Units World Network, Yemen Study Learning Training Coaching Syllabus Visualization System and Units World Network, Yemen Syllabus Visualization System and Units World Network, Yemen Learning Training Coaching Tools URL: http://www.societalsystem.com/fym/vsx.fym/xsa.vsx.fym/gs0051.vsx.fym.html StSNmr: 00 - StSTop: vsx.fym - StSFil: gs0051.vsx.fym Date: 02.07.2016 Author(s): SocietalSystem-Editors Trainer Coacher: ............................ Manager: ........................................ Contact: contact@societalsystem.com