D.O. · D. Oliver · Don-Oliver Mathies · Don-Oliver Matthies
| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Business Owner's Guide to Accounting & Bookkeeping | 978-1-55571-156-6 (1-55571-156-1) | 1991 | Jose Placencia · Bruce Welge |
| Financial Accounting Guide for Small Business | 978-1-55571-049-1 (1-55571-049-2) | 1989 | Jose Placencia · Bruce Welge |