IJRERD (ISSN: 2455-8761) Volume No. 06 - Issue No. 04, April 2021 S. No. Article Title & Author Name Page No. Download/View 1 Evaluating the Impact of Tariffs on Designing a Sustainable Closed-Loop Supply Chain Mohsen Tehrani || Surendra M. Gupta 01-20 2 Stress-Strain relationship of Glass-Polyviny Alcohol Fiber Reinforced Recycled Coarse Aggregate Concrete under Uniaxial Compression JI Jiakun || NIU Haicheng || ZHANG Yaozong 21-30