OKOH , Onyebuchi Ugonna; MBAH, G. O. MAINTENANCE MANAGEMENT OF COMPLEX INDUSTRIAL SYSTEMS. European Journal of Marketing and Management Sciences, [S. l.], v. 6, n. 5, p. 36–47, 2023. Disponível em: https://aspjournals.org/Journals/index.php/ejmms/article/view/437. Acesso em: 14 dec. 2025.