CONSTRAINTS TO YAM (DIOSCOREA SPP) PRICE FORMATION IN THE URBAN AND RURAL MARKETS OF THE CENTRAL AGRICULTURAL ZONE OF NASARAWA STATE, NIGERIA. FUDMAJAAT [Internet]. 2022 Sep. 21 [cited 2026 Jan. 23];8(1):383-92. Available from: https://jaat.fudutsinma.edu.ng/index.php/jaat/article/view/105