- Author: Oregon State University Philip L. Jackson
- Language: English
- Year: 1993
- Author: Rick Bastasch
- Language: English
- Year: 1998
- Author: Gail Wells
- Language: English
- Year: 1999
- Author: Char Miller
- Language: English
- Year: 2000
- Author: Judith Kitchen
- Language: English
- Year: 1998
- Author: Roger L. Sheley Janet K. Petroff
- Language: English
- Year: 1999
- Author: Alan Contreras
- Language: English
- Year: 1997
- Author: Amy Houchen
- Language: English
- Year: 1998
- Author: Robert E. Manning
- Language: English
- Year: 1999
- Author: Robin Rose Caryn E. C. Chachulski Diane L. Haase
- Language: English
- Year: 1998