SHARMA, S. K.; SHUKLA, S. K.; VAID, D. N. Shellac-Structure, Characteristics & Modification. Defence Science Journal, [S. l.], v. 33, n. 3, p. 261–271, 2014. DOI: 10.14429/dsj.33.6181. Disponível em: https://publications.drdo.gov.in/ojs/index.php/dsj/article/view/6181. Acesso em: 6 jul. 2025.