B. O. OGUNBAMERU. Livestock Extension Service in the Arid Zone of Nigeria : A Case Study of Borno State. Indian Journal of Extension Education, India, v. 26, n. 3&4, p. 17–23, 1990. DOI: 10.48165/. Disponível em: http://epubs.icar.org.in/index.php/IJEE/article/view/159474. Acesso em: 25 oct. 2025.