Indriani, Yayuk Dwi, Agus Purnomo, and Melia Eka Lestiani. “Development and Validation of a Centralised Procurement Model: The Key Role and Intermediary Role in Strengthening Procurement Governance (Case Study of PT Wika Gedung)”. Dinasti International Journal of Education Management and Social Science 7, no. 3 (February 12, 2026): 2784–2796. Accessed June 7, 2026. https://dinastipub.org/DIJEMSS/article/view/5997.