1. Process Analysis and Simulation”;Himmelblau,1968
2. Microsoft Press® Computer and Internet Dictionary © & 1997, 1998 Microsoft Corporation. All rights reserved. Portions, The Microsoft Press® Computer Dictionary, 3rd Edition, Copyright © 1998 by Microsoft Press. All rights reserved.
3. http://www.hyprotech.com.
4. http://www.aspentech.com.
5. http://www.simsci.com.