2000
“Effectiveness of the Indiana 4-H Tractor Program at Instilling Safe Tractor Operating Behaviors and Attitudes in Youth”. Journal of Agricultural Safety and Health 6(3): 179-189.
. 2000. 2001
“Effectiveness of the Indiana 4-H Tractor Program: Alumni Perceptions”. Journal of Agricultural Education 42(3): 11-20.
. 2001.