SALISU, M. M.; ALI, U.A. Availability Determination of a Complex Repairable Series- Parallel System Using Markovian Birth-Death Process. International Journal of Science for Global Sustainability, [S. l.], v. 1, n. 1, p. 13, 2015. Disponível em: https://www.fugus-ijsgs.com.ng/index.php/ijsgs/article/view/292. Acesso em: 25 jun. 2026.