?url_ver=Z39.88-2004&rft_id=10.1145%2F1806338.1806415&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.aulast=Latif&rft.au=Latif%2C+N.A.&rft.aufirst=N.A.&rft.date=2009&rft.title=Interaction+protocol+for+agent-based+e-learning+system&rft.isbn=9781605586601&rft.genre=proceeding