Histological study of oesophagus in white breasted kingfisher (Halcyonsmyrnensis). Journal of Madenat Alelem, [S. l.], v. 8, n. 2, p. 29–39, 2016. Disponível em: https://journal.mauc.edu.iq/index.php/JMAUC/article/view/111. Acesso em: 28 feb. 2026.