Edwin Ikechukwu, J. , R. Igwe, S. and Georgewill, T. 2026. Preventive Maintenance and Project Sustainability: A Comparative Study of Public and Private Healthcare Service Organizations in Rivers State. Gusau International Journal of Management and Social Sciences. 9, 1 (Apr. 2026), 348–370. DOI:https://doi.org/10.57233/gijmss.v9i1.17.