ADDAI, I. University of Education, Winneba Productivity and Efficiency: A Data Envelopment Analysis Exploration, Ghana. The International Journal of Humanities & Social Studies, [S. l.], v. 7, n. 11, 2019. DOI: 10.24940/theijhss/2019/v7/i11/HS1911-030. Disponível em: https://internationaljournalcorner.com/index.php/theijhss/article/view/149354. Acesso em: 22 jul. 2024.