2
Porter, Gary A.
| Dryden Press |
1996
5
Warren, Carl S.
| South-Western Publishing Co. |
1993
6
Jones, Kumen H.
| Prentice hall |
1996
8
Oliver, E. Eugene
| Prentice-Hall |
1987
9
Rayburn, Letricia Gayle.
| Irwin |
1989