Effiong EA, Nwoke PH, Ugwu APKE. Assessment of impact of regulatory guidelines on procurement lead times in world bank-funded projects in Nigeria . JCMTS [Internet]. 2025 Dec. 10 [cited 2026 Jan. 26];4(3):430-49. Available from: https://ympn.co.id/index.php/JCMTS/article/view/375