Kaka, Y., A. A. Gindi, and U. Magaji. “Evaluation of Onion Value Chain Actors in Kebbi State, Nigeria: A Case Study of Producers and Retailers”. Asian Journal of Agricultural Extension, Economics & Sociology, Vol. 39, no. 2, Mar. 2021, pp. 12-22, doi:10.9734/ajaees/2021/v39i230526.