Onikosi-Alliyu, S. O., R. A. Mustapha, Y. M. Yusuf, and H. R. Shuaib. “Impact of COVID-19 on External Debt in Nigeria”. Lapai Journal of Economics, vol. 5, no. 2, Dec. 2021, pp. 1-10, doi:10.2022/lje.v5i2.112.