List of Articles نرخ بازگشت سرمایه Open Access Article Abstract Page Full-Text 1 - Economic analysis of gas extraction refining risk response strategies by NPV method (Case study in the Gas Refinery) alireza Askarian mahnaz Mirza Ebrahim Tehrani 10.30495/imj.2021.681441 Open Access Article Abstract Page Full-Text 2 - Designing a model for capital return in distance higher education system amir sabzipor null null null null nul nul