B. . Egwunatum, N. . Akpotu, and J. . Anho, “Unit Cost Per Teachers’ Salaries as Index  of Cost Pattern in Public Basic and Secondary Education in Delta and Edo States, Nigeria”, J. Policy Plann., vol. 3, no. 1, pp. 14–21, May 2026, doi: 10.54536/jpp.v3i1.7251.