Martin, Robert A., Emmanuel Nwozuzu, and Amy Gleason. “Perceived Communications And Support Linkages Of High School Principals And Vocational Agriculture Teachers”. Journal of Agricultural Education 27, no. 1 (March 28, 1986): 18–26. Accessed August 11, 2024. https://jae-online.org/index.php/jae/article/view/1286.