HALDAR, C.; SINGH, S. S. Seasonal Changes in Melatonin and Immunological Adaptations in Birds. Journal of Endocrinology and Reproduction, [S. l.], v. 5, n. 1&2, p. 13–24, 2001. Disponível em: https://www.informaticsjournals.com/index.php/jer/article/view/4432. Acesso em: 7 may. 2024.