OKATAHI, Stephen S.; WELTON, Richard F. Professional Competencies Needed By Teachers In Agricultural Colleges Of Northern States In Nigeria. Journal of Agricultural Education, [S. l.], v. 26, n. 2, p. 24–30, 1985. DOI: 10.5032/jaatea.1985.02024. Disponível em: https://jae-online.org/index.php/jae/article/view/928. Acesso em: 18 oct. 2024.