Indriani, Yayuk Dwi, Agus Purnomo, and Melia Eka Lestiani. 2026. “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 (3):2784-96. https://doi.org/10.38035/dijemss.v7i3.5997.