OJO, M. O. Sustainable children investment in guinea pig production and its implications for extension services . Nigerian Journal of Animal Production, [S. l.], v. 31, n. 1, p. 79–85, 2021. DOI: 10.51791/njap.v31i1.1464. Disponível em: https://njap.org.ng/index.php/njap/article/view/1464. Acesso em: 18 sep. 2026.