Timothy Berry
Tim Berry's business plan pro, Version 1.21
Hurdle
Hurdle, the book on business planning
The plan-as-you-go business plan
3 weeks to startup
Business plan pro, Version 3.0
Hurdle
Hurdle, the book on business planning
On target
Working smart with electronic spreadsheets
Business Planning with I. B. M. Personal Decision Software
Human Blip