Dada, Joshua Oluwasuji, and Godwin Onajite Jagboro. 2015. “Core Skills Requirement and Competencies Expected of Quantity Surveyors: Perspectives from Quantity Surveyors, Allied Professionals and Clients in Nigeria”. Construction Economics and Building 12 (4), 78-90. https://doi.org/10.5130/AJCEB.v12i4.2808.