Baba, K. C., Adedeji, S. O., and Waziri, A. “TECHNICAL EFFICIENCY OF YAM PRODUCTION IN PAIKORO LOCAL GOVERNMENT AREA OF NIGER STATE, NIGERIA”. Journal of Agripreneurship and Sustainable Development, vol. 6, no. 1, Apr. 2023, pp. 154-9, doi:10.59331/jasd.v6i1.403.