Umar, S. M., Makama, S. A., and Abba, K. Z. “APPLICATION OF DATA ENVELOPMENT ANALYSIS (DEA) TO SMALL-SCALE SORGHUM PRODUCERS IN YOBE STATE, NORTH-EAST NIGERIA”. Journal of Agripreneurship and Sustainable Development 6, no. 4 (December 1, 2023): 259–266. Accessed April 3, 2025. https://njaat.com.ng/index.php/jasd/article/view/592.