CHEONG, M. F. Estoppel In Boustead’s Case: A Move Away From Reliance Towards Unconscionability. Journal of Malaysian and Comparative Law, [S. l.], v. 26, n. 2. Dec, p. 71–78, 1999. Disponível em: https://ijie.um.edu.my/index.php/JMCL/article/view/16168. Acesso em: 4 jul. 2024.