PERRY, Thomas. On the horse sickness. South African Quarterly Journal, Cape Colony, v. 1, n. 4, p. 438–442, 1830. DOI: 10.21504/saqj.14.2671. Disponível em: https://journal.ru.ac.za/index.php/saqj/article/view/2671. Acesso em: 20 nov. 2025.