List of Articles Open Access Article Abstract Page Full-Text 1 - Approximate solution of nonlinear fractional order model of HIV infection of CD4+T via Differential Quadrature Radial Basis Functions technique Kokab Chalambari Hamideh Ebrahimi Zeinab Ayati 20.1001.1.25885723.2021.13.1.1.4 Open Access Article Abstract Page Full-Text 2 - Using nonstandard finite difference methods for solving converted Schrodinger equation to an ODE Farnoosh Izadi 20.1001.1.25885723.2021.13.1.9.2 Open Access Article Abstract Page Full-Text 3 - A novel solving method for multi-objective decision making problems under fuzzy conditions Alireza Alinezhad Abolfazl Kazemi Mojgan Khorasani 20.1001.1.25885723.2021.13.1.3.6 Open Access Article Abstract Page Full-Text 4 - A framework to design a green supply chain for the steel industry with a strategic approach (The case of Guilan province) Sirous Balaeia Nabiollah Mohammadi Homa Doroudi 20.1001.1.25885723.2021.13.1.8.1 Open Access Article Abstract Page Full-Text 5 - Factors affecting deviations of efficiency in distance-based Common Set of Weight -DEA models Saeid Saeid Shahghobadi* 20.1001.1.25885723.2021.13.1.4.7 Open Access Article Abstract Page Full-Text 6 - Application of DEA to measure the efficiency of Open Source software projects Ehsan Zanboori Fateme Rostami Saeid Ghobadi 20.1001.1.25885723.2021.13.1.5.8