G. N. Abe, M. N. Arrey, K. S. B. Tchatat, N. T. Ezekiel, and O. Obelle, “A Cluster-Based Comparative Analysis of Economic Conditions and Consumer Spending Patterns in Cameroon and Nigeria”, AJMBR, vol. 23, no. 1, pp. 240–261, Aug. 2026, doi: 10.62154/ajmbr.2026.023.01022.