EAPEN, Jijo C; PRAKASH, Amit. Enigma of Fixed Retainers. Orthodontic Journal of Nepal, [S. l.], v. 7, n. 2, p. 52–55, 2017. DOI: 10.3126/ojn.v7i2.20168. Disponível em: https://nepjol.info./index.php/OJN/article/view/20168. Acesso em: 27 apr. 2025.