Strong, Robert, J. Thomas Wynn, Travis L. Irby, and James R. Lindner. “The Relationship Between Students’ Leadership Style and Self-Directed Learning Level”. Journal of Agricultural Education 54, no. 2 (June 30, 2013): 174–185. Accessed May 21, 2026. https://jae-online.org/index.php/jae/article/view/517.