OLUWATOSIN, Ruth Owolabi. Assessment of Procurement System and Quality Service Delivery In Nasarawa State Public Sector, Nasarawa State. Nigerian Journal of Sustainability Research, Nigeria, v. 4, n. 1, p. 361–386, 2026. DOI: 10.67163/njsr-69. Disponível em: https://njsr.com.ng/index.php/home/article/view/69.. Acesso em: 23 oct. 2026.