/ http://www.slideshare.net/images/logo.gif / ºÝºÝߣShare feed for ºÝºÝߣshows by User: ssuser51ae3a https://cdn.slidesharecdn.com/profile-photo-ssuser51ae3a-48x48.jpg?cb=1523592255 ทำงาน ๆๆๆๆๆๆๆๆๆๆๆๆๆๆๆๆๆๆๆๆๆๆๆ