Estepp, Christopher M., Christopher T. Stripling, Nathan W. Conner, Aaron Giorgi, and T. Grady Roberts. 2013. “An Examination of the Learning Activities, Cognitive Level of Instruction, and Teacher Immediacy Behaviors of Successful Instructors in a College of Agriculture”. Journal of Agricultural Education 54 (2):15-28. https://doi.org/10.5032/jae.2013.02015.