/ http://www.slideshare.net/images/logo.gif / 際際滷Share feed for 際際滷shows by User: nasirbd00 https://cdn.slidesharecdn.com/profile-photo-nasirbd00-48x48.jpg?cb=1522991564 I am working as associate professor for more than 15 years here in. National Academy for Computer Training And Research, (NACTAR) Bogra, Bangladesh.