2022. CONSTRAINTS TO YAM (DIOSCOREA SPP) PRICE FORMATION IN THE URBAN AND RURAL MARKETS OF THE CENTRAL AGRICULTURAL ZONE OF NASARAWA STATE, NIGERIA. FUDMA Journal of Agriculture and Agricultural Technology. 8, 1 (Sep. 2022), 383–392. DOI:https://doi.org/10.33003/jaat.2022.0801.105.