/ http://www.slideshare.net/images/logo.gif / 際際滷Share feed for 際際滷shows by User: prasertroongsarppanich https://cdn.slidesharecdn.com/profile-photo-prasertroongsarppanich-48x48.jpg?cb=1664890480 Engineer Level 5 at Mahasawat Water Treatment Plant ,Former programmer at Thammasat University ,former , Computer book writer with SE-ED, researcher assistance Chulalong korn University