List of Articles علی خسروی Article 1 - Design and Implementation of the GABC Model to Calculate the Cost of Outsourcing Services with Emphasis on Sustainability Concepts https://doi.org/10.82563/jetaaf.2024.202405151119880 Zabihollah Khani Masoomabadi Ali Khosravi Naser Eghbali JETAAF , Issue 5 , Year , Spring 2024