MALIK, S. .; UPMA. COST-BENEFIT ANALYSIS OF A SYSTEM OF NON- IDENTICAL UNITS UNDER PREVENTIVE MAINTENANCE AND REPLACEMENT. Journal of Reliability and Statistical Studies, [S. l.], v. 9, n. 02, p. 17–27, 2020. Disponível em: https://journals.riverpublishers.com/index.php/JRSS/article/view/20991. Acesso em: 15 may. 2026.