Article

Adams, A. A., Lubega, J., Walmsley, S. M. and Williams, S. A. (2004) The effectiveness of assessment learning objects produced using pair programming. Electronic Journal of e-Learning, 2 (2). pp. 247-256. ISSN 1479-4403

Book

Williams, S. A. and Walmsley, S. M. (1998) Discover Delphi: programming principles explained. Addison-Wesley, pp400. ISBN 9780201342864