R. Tajarlou and B. G. Darabad, “The review of Principles Governing Public Procurement”, IAJE, vol. 4, no. 2, pp. 62–68, Dec. 2017, Accessed: Oct. 11, 2026. [Online]. Available: https://iaiest.com/iaj/index.php/IAJE/article/view/IAJE1710012