Using Markov Chains to Establish the System of Reliability and Preventive Maintenance with Application Part. Journal of Al-Rafidain University College For Sciences ( Print ISSN: 1681-6870 ,Online ISSN: 2790-2293 ), [S. l.], v. 46, n. 1, p. 535–544, 2021. DOI: 10.55562/jrucs.v46i1.104. Disponível em: https://jrucs.iq/index.php/JAUCS/article/view/104. Acesso em: 28 oct. 2025.