BADUBI, S.S.; RAVINDRAN, V. A Survey of Small-scale Layer Production Systems in Botswana. International Journal of Poultry Science, Pakistan, v. 3, n. 5, p. 322–325, 2004. DOI: 10.3923/ijps.2004.322.325. Disponível em: https://ijpsjournal.org/index.php/ijps/article/view/187. Acesso em: 23 sep. 2025.