/ http://www.slideshare.net/images/logo.gif / ºÝºÝߣShare feed for ºÝºÝߣshows by User: Worapotsan https://public.slidesharecdn.com/v2/images/profile-picture.png ´ÊมองไึϹ‰à¹�ต่อย่าชอบ´Ê