RETIEF, F. P.; CILLIERS, L. Snake and staff symbolism and healing. Acta Theologica, [S. l.], n. 7, p. 189–199, 2005. DOI: 10.38140/at.v0i7.2089. Disponível em: https://journals.ufs.ac.za/index.php/at/article/view/2089. Acesso em: 10 apr. 2025.