BAJAJ, M. I.; PANDE, C. D.; VENKATARAMANI, B. A note on semirigid polyurethane forms based on castor oil. Defence Science Journal, [S. l.], v. 14, n. 3, p. 277–280, 2014. DOI: 10.14429/dsj.14.7160. Disponível em: https://publications.drdo.gov.in/ojs/index.php/dsj/article/view/7160. Acesso em: 13 jul. 2025.