AMBA, S. Indian Patents on Leather and Allied Fields. Journal of Information and Knowledge, [S. l.], v. 18, n. 3, p. 137–154, 1981. DOI: 10.17821/srels/1981/v18i3/49401. Disponível em: https://srels.org/index.php/sjim/article/view/49401. Acesso em: 10 jan. 2025.