/ http://www.slideshare.net/images/logo.gif / ºÝºÝߣShare feed for ºÝºÝߣshows by User: pongjawsiong https://cdn.slidesharecdn.com/profile-photo-pongjawsiong-48x48.jpg?cb=1523370980 Pong Khai Zhe ·¿¿­ÕÜ