Usman, U. A., Y. U. Dantama, and M. Abubakar. “An Empirical Study on Impact of Labour Productivity, Dependency Ratio on Working Poverty in Sub Saharan African Countries (SSA): An Auto Regressive Distributed Lag (ARDL) Model Approach”. Lapai Journal of Economics, vol. 4, no. 2, Dec. 2020, pp. 178-87, doi:10.2022/lje.v4i2.88.