CHUKWUKA, E., A. ARINZE, and O. CHIDI. “TRADE LIBERALIZATION AND ECONOMIC GROWTH IN NIGERIA: A COINTEGRATION ANALYSIS (1980-2015)”. GPH-International Journal of Business Management, Vol. 1, no. 1, Aug. 2018, pp. 68-81, https://gphjournal.org/index.php/bm/article/view/32.