ALSEFRI, Abdullah ALHassan. The Use of Chain Blocks in the Maintenance of Intellectual Property Rights. Journal of Economic, Administrative and Legal Sciences, New Mexico, United States, v. 4, n. 5, p. 131–103, 2020. DOI: 10.26389/AJSRP.M130919. Disponível em: https://ajsrp.ojsexpert.com/index.php/jeals/article/view/2430. Acesso em: 20 dec. 2025.