Abdullah Salem Al-Kathairi, A. Abd El Halim. “FRAMEWORK TO IMPLEMENT PERFORMANCE BASED CONTRACTS FOR ROAD MAINTENACNE”. International Journal of Research Science and Management 1, no. 7 (December 30, 2014): 11–16. Accessed October 21, 2026. http://ijrsm.com/index.php/journal-ijrsm/article/view/702.