Shehu, A., Kadafur, M. I., and Goni, I. C. “VALIDITY OF SELF-REPORT TO MEASURE FARM SIZE: EVIDENCE FROM NORTHERN GUINEA SAVANNAH OF BORNO STATE, NIGERIA”. Journal of Agripreneurship and Sustainable Development, vol. 3, no. 4, Dec. 2020, pp. 91-98, doi:10.59331/jasd.v3i4.163.