Data Envelopment Analysis Approach To Resource a Use Efficiency Among Rice Farmers In Anambra State a Nigeria. Global Journal of Science Frontier Research, [S. l.], v. 12, n. D5, p. 37–41, 2012. Disponível em: https://www.journalofscience.org/index.php/GJSFR/article/view/100276. Acesso em: 14 aug. 2026.