Onuche, Unekwu. “Price Interactions and Causal Relationships Among Corn, Exchange Rate and Animal Protein Sources in Nigeria”. Journal of Agribusiness and Rural Development 59, no. 1 (April 2, 2021): 59-67. Accessed April 26, 2024. http://www1.up.poznan.pl/jard/index.php/jard/article/view/1387.