OFOEGBU, WILSON CHUKWUEMEKA. Production Planning and Operational Cost Management of Manufacturing Firms in Rivers State. Texas Journal of Multidisciplinary Studies, USA, v. 26, p. 80–91, 2023. Disponível em: https://zienjournals.com/index.php/tjm/article/view/4748. Acesso em: 14 nov. 2024.