BAHL, S. K.; ARORA, K. L. Techniques of Technological Forecasting. Defence Science Journal, [S. l.], v. 39, n. 3, p. 277–285, 2010. DOI: 10.14429/dsj.39.4771. Disponível em: https://publications.drdo.gov.in/ojs/index.php/dsj/article/view/4771. Acesso em: 6 jul. 2025.