CHUKWUEMERIE, U. J.; OSSAMULU, H. O.; CHIBUEZE, I. H. Strategizing Economy Using Spiral Spring Process Model (SSPM). The International Journal of Science & Technoledge, [S. l.], v. 3, n. 6, 2015. Disponível em: http://internationaljournalcorner.com/index.php/theijst/article/view/124434. Acesso em: 7 jul. 2024.