SALIFU, S.; AVORNYO, F. K.; PANYAN, E. K.; HAGAN, B. A. Influence of Season of Lambing on Postpartum Interval to Ovarian Activity in Djallonke Ewes. International Journal of Livestock Research, India, v. 8, n. 8, p. 50–61, 2018. Disponível em: http://ijlr.org/ojs_journal/index.php/ijlr/article/view/1632. Acesso em: 17 apr. 2026.