Omar Al-Sadhan, and Muhammad Awais Bhatti. 2023. “ARTIFICIAL INTELLIGENCE (AI) BASED CONTRACTS PROCUREMENT: EXAMINING THE INFLUENCE OF BIG DATA, MACHINE LEARNING, INTERNET OF THINGS, EMPLOYEE SKILLS & RESOURCES AND LEADERSHIP ON PROCUREMENT COST REDUCTION”. Operational Research in Engineering Sciences: Theory and Applications 6 (1). https://oresta.org/menu-script/index.php/oresta/article/view/556.