- Author: Judy C. Pearson, Paul E. Nelson, Scott Titsworth, Lynn Harter, Jeff Butler, Stephen Ihde, Jim Katt, Burt Pryor
- Language: English
- Year: 2021
- Author: Judy C. Pearson, Paul E. Nelson
- Language: English
- Year: 2014
- Author: Jeffrey T. Child Judy C. Pearson Paul E. Nelson
- Language: English
- Year: 2018
- Author: Judy C. Pearson, Scott Titsworth, Angela Hosek, Paul E. Nelson
- Language: English
- Year: 2016
- Author: Paul Edward Nelson Scott Titsworth Judy C. Pearson
- Language: English
- Year: 2009