Sanusi SM. Price Discovery and Price Volatility of Vertical Integrated Cowpea Market (Rural-Urban) In Niger State of Nigeria: Price Discovery and Price Volatility of Vertical Integrated Cowpea Market (Rural-Urban) In Niger State of Nigeria. AEXTJ [Internet]. 2018 Jan. 2 [cited 2024 Apr. 25];1(6). Available from: http://aextj.com/index.php/aextj/article/view/41