1. ANSA. (Advanced Networked Systems Architecture). 1989.ANSA: An Engineer's Introduction. Release TR.03.02, Architecture Projects Mangement Limited, Poseidon House, Castle Park, Cambridge, CB3 0RD United Kingdom.
2. Apple Computers Inc. 1991.Macintosh Networking Guide. 205–25 Mariani Avenue, Cupertino, CA 95014-6299, USA
3. Armstrong, M. 1990. Management Processes and Functions. InManagement Studies Series, eds. M. Armstrong and D. Farnham.
4. Barghouti N.S. and G.E. Kaiser. 1991. Concurrency Control in Advanced Database Applications.ACM Computing Surveys 23 (3):269–317.
5. Benford S.D. 1991. Requirements of Activity Management. InStudies in Computer Supported Cooperative Work. Theory, Practice and Design, eds J.M. Bowers and S.D. Benford, 285–298, Amsterdam: North-Holland.