Onya, Osim Rosemary, Michael Chukwudi Uzoigwe, Ovat, Egbe Okpa, Okpechi Philip Abane, and Igbineweka Paul Osa. “Public Health Expenditure, Government Effectiveness and Labour Productivity in West Africa”. Nurture 18, no. 1 (January 1, 2024): 55–72. Accessed September 12, 2025. http://nurture.org.pk/index.php/NURTURE/article/view/543.