Devkota, Mitra Lal, and Humnath Panta. “Are Exports, Imports, and Exchange Rates Cointegrated? Empirical Evidence from Nepal”. International Journal of Economics and Financial Issues, vol. 9, no. 2, Mar. 2019, pp. 273-6, https://mail.econjournals.com/index.php/ijefi/article/view/7588.