OFOEGBU, WILSON CHUKWUEMEKA; EFEH, VALENTINE OMORSE. Production Improvement Function and Operational Performance of Nigerian Refineries. Eurasian Journal of Humanities and Social Sciences, [S. l.], v. 12, p. 24–38, 2022. Disponível em: https://geniusjournals.org/index.php/ejhss/article/view/5715. Acesso em: 31 jan. 2025.