فهرس المقالات Contractual Principles حرية الوصول المقاله صفحة الملخص نص كامل 1 - Identifying the challenges of implementing the integrated project delivery method (IPD) in large residential projects in Iran Seyed Azim Hosseini Mitra Rahkhoday Badrani 10.30495/jiei.2023.1955963.1216