KHAN, I. U.; KALEEM ULLAH. Islamic Approach towards Import and Export: A Research Analysis in the Context of Umar’s (RA) Vision. Journal of Islamic and Religious Studies, Haripur, Pakistan, v. 5, n. 2, p. 69–84, 2020. DOI: 10.36476/JIRS.5:2.12.2020.05. Disponível em: https://jirs.uoh.edu.pk/index.php/JIRS/article/view/421. Acesso em: 11 aug. 2025.