CHOWDHRY, B. S.; MEMON, A. R.; MAKHDOOM, M.; GAUTAM, D. R. ? PERSONAL COMPUTER BASED RAILWAY MONITORING AND SIGNALING SYSTEM. Biological Sciences - PJSIR, [S. l.], v. 38, n. 5-6, p. 220–228, 1995. Disponível em: https://v2.pjsir.org/index.php/biological-sciences/article/view/2479. Acesso em: 22 jul. 2024.