[1]
منصور أ.إ. 2008. Mansour, Ahmad Ibrahim. “A Study in the Methodology of Economic Efficiency: ʿUmrān and Khaldūnian Reason as a Model,” Year 13, Issue 51 (Winter 1429 AH/ 2008 CE), Pp. 263 -284. Al-Fikr al-islāmī al-muʿāṣir (previously Islamiyat al-Ma’rifah). 13, 51 (Jan. 2008), 263–284. DOI:https://doi.org/10.35632/citj.v13i51.1223.