Maikasuwa, M.A. and Ala, A. 2013. TREND ANALYSIS OF AREA AND PRODUCTIVITY OF SORGHUM IN SOKOTO STATE, NIGERIA, 1993-2012. European Scientific Journal, ESJ. 9, 16 (Jun. 2013). DOI:https://doi.org/10.19044/esj.2013.v9n16p%p.