A. Shatnawi, “The Power of Administration to Purchase on the Account of the Contracting Party (Contractor) Comparative Study”, AJRS, vol. 8, no. 1, pp. 50–79, Jun. 2001, Accessed: Oct. 10, 2026. [Online]. Available: https://ajrs.ammanu.edu.jo/ojs/index.php/albalqajournal/article/view/448