ABDULLAHI SANUSI. Availability and Profit Analysis of a Series-Parallel System. Global Journal of Science Frontier Research, [S. l.], v. 20, n. F8, p. 45–55, 2020. Disponível em: https://journalofscience.org/index.php/GJSFR/article/view/2850. Acesso em: 8 may. 2024.