?url_ver=Z39.88-2004&rft_id=10.1109%2FICSIPA.2013.6708011&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.aufirst=N.A.&rft.aulast=Shuaibu&rft.au=Shuaibu%2C+N.A.&rft.title=Spiral+path+simulation+of+pedestrian+flow+during+Tawaf&rft.isbn=9781479902675&rft.date=2013&rft.genre=proceeding