C. O. Manasseh, F. C. Abada, J. E. Ogbuabor, J. U. J. Onwumere, C. E. Urama, and O. E. Okoro, “The Effects of Interest and Inflation Rates on Consumption Expenditure: Application of Consumer Spending Model”, IJEFI, vol. 8, no. 4, pp. 32–38, Jul. 2018.