SIRPAL, J. P. Optimum trunnion pull. Defence Science Journal, [S. l.], v. 8, n. 4, p. 333–338, 2014. DOI: 10.14429/dsj.8.7606. Disponível em: https://publications.drdo.gov.in/ojs/index.php/dsj/article/view/7606. Acesso em: 16 jun. 2025.