SRINIVAS, N.; RAMACHARYULU, N. P. Some Mathematical Aspects of Spread and Stability of Time-Delay Gonorrhea. Defence Science Journal, [S. l.], v. 41, n. 3, p. 277–293, 2013. DOI: 10.14429/dsj.41.4432. Disponível em: https://publications.drdo.gov.in/ojs/index.php/dsj/article/view/4432. Acesso em: 15 jun. 2025.