Onu, O. H. and Akani, N. (2025) “Replication of Axial Points in Two-Factor Doehlert and Central Composite Designs with a Single Centre Point”, Faculty of Natural and Applied Sciences Journal of Scientific Innovations . Port Harcourt, Nigeria, 6(3), pp. 106–111. doi: 10.63561/fnas-jsi.v6i3.957.