/ http://www.slideshare.net/images/logo.gif / ºÝºÝߣShare feed for ºÝºÝߣshows by User: juweialhaj https://cdn.slidesharecdn.com/profile-photo-juweialhaj-48x48.jpg?cb=1523581020 to success there are three things to do; keep learning, keep asking and keep trying (Juwei Itu حزوان)