/ http://www.slideshare.net/images/logo.gif / ºÝºÝߣShare feed for ºÝºÝߣshows by User: aonniiaonn https://public.slidesharecdn.com/v2/images/profile-picture.png Natnaree N. Aonnii'aonn KMITL'55 • ID.ED#35 • AG.ED#32 BBV#114