EKPENYONG, A.; EKPO, Timothy. The constraints to implementation of agricultural and related policies and programmes in Nigeria: Nigerian Journal of Vocational Teacher Education, 5(1). Afrischolar Discovery Repository (Annex), [S. l.], p. 71–78, 2004. DOI: 10.60951/afrischolar-491. Disponível em: https://publications.afrischolar.net/index.php/home/article/view/491. Acesso em: 1 apr. 2026.