What has the author Valda Hilley written?

Valda Hilley has written:

'Windows NT 4 for dummies' -- subject(s): Microsoft Windows NT, Operating systems (Computers)

'Windows NT server 4.0 secrets' -- subject(s): Microsoft Windows NT, Operating systems (Computers), World Wide Web

'Using Drafix Windows CAD' -- subject(s): Computer graphics, Drafix Windows CAD