MARTIN, Robert A.; HOWELL, David L. Selected Supervisory Techniques Used By Principals And Their Implications To The Success Of Beginning Teachers. Journal of Agricultural Education, [S. l.], v. 24, n. 3, p. 53–60, 1983. DOI: 10.5032/jaatea.1983.03053. Disponível em: https://jae-online.org/index.php/jae/article/view/723. Acesso em: 13 jul. 2024.