List of Articles Open Access Article Abstract Page Full-Text 1 - Analysis and evaluation of the legislation performance of different periods of the Islamic Parliament based on Data Envelopment Analysis Alireza Amirteimoori Kambiz Shahroudi Mehrdad Goodarzvand Chegini Ahmad Ghanbarian Boroojeni Open Access Article Abstract Page Full-Text 2 - Numerical solution of integro-differential equations via pertubed-Gegenbauer, Jacobi polynomials and Galerkin method Kazeem Issa Kazeem Aliu Kazeem Arokoola Kazeem Micah Open Access Article Abstract Page Full-Text 3 - Improved solution to nonlinear generalized Benjamin–Bona–Mahony–Burgers (GBBMB) equation by a meshless RBFs method Mehran Nemati Seyedeh Fayezeh Teimoori Open Access Article Abstract Page Full-Text 4 - Optimization of Language Learning with TOPSIS Taraneh Javanbakht Open Access Article Abstract Page Full-Text 5 - Iterative random search heuristic for the Single-Source Capacitated Multi-Facility Weber Problem with Setup Costs Saed Jahadi Open Access Article Abstract Page Full-Text 6 - Optimization of the Private Sector Cooperative Approach in Investment Projects of the National Iranian Oil Company Using Game Theory Approach Shadi Safarii Mansour Soufi Alireza Amirteimoori Mahdi Fadaei