| Verfasser | Häufigkeit |
| McLeskey, James 1949- |
7 |
| Billingsley, Bonnie S. 1955- |
4 |
| Brownell, Mary T. |
4 |
| Lewis, Timothy J. |
4 |
| Maheady, Lawrence |
4 |
| McLeskey, James |
3 |
| Rosenberg, Michael S. |
2 |
| Westling, David L. |
2 |
| Algozzine, Robert 1946- |
1 |
| Spooner, Fred |
1 |
| Waldron, Nancy L. |
1 |
| Waldron, Nancy L. 1958- |
1 |