SANUSI, S. M. Price Transmission and Signals of Cowpea Across Zones and Value Chain in Niger State of Nigeria: Price Transmission and Signals of Cowpea Across Zones and Value Chain in Niger State of Nigeria. B.R. Nahata Smriti Sansthan Agricultural Extension Journal (AEXTJ), [S. l.], v. 3, n. 4, 2020. DOI: 10.22377/aextj.v3i4.188. Disponível em: https://aextj.com/index.php/aextj/article/view/188. Acesso em: 4 dec. 2024.