By Mike Plusch; John Wiley and Sons, 2002, ISBN 0764525360. In-depth introductory guide, hands-on tutorials, over 1, 000 examples include source code, output; organized in 6 parts; author is Water co-creator. [Amazon.com]
By Michael Podanoffsky; Addison-Wesley, 1994, ISBN 020162687X, has CD-ROM. Explores DOS structure, function from programmer view, overall architecture, command structure, code-level details of vital actions. [Amazon.com]