List of Articles Grey system Open Access Article Abstract Page Full-Text 1 - A Primal Simplex Algorithm for Solving Linear Programming Problem with Grey Cost Coefficients S.H. Nasseri A. Yazdani D. Darvishi Salokolaei Open Access Article Abstract Page Full-Text 2 - Portfolio selection by Using Multi Attribute Decision Making based on grey relational analysis and linear programming A. Asghar Anvari Rostami Mahdis Taghavi M. Ebrahim Aghababaei Open Access Article Abstract Page Full-Text 3 - Presenting a Hybrid Model of Data Envelopment Analysis and Multi-Objective Decision Making to Achieve the Efficiency Score of Decision Making Units in Grey Environment Alizera Alinezhad Hossen Kakavand Abolfazle Kazemi Ali Shakorloo Open Access Article Abstract Page Full-Text 4 - Managing the Uncertainty: From Probability to Fuzziness, Neutrosophy and Soft Sets Michael Voskoglou 10.30495/tfss.2022.1960147.1036 Open Access Article Abstract Page Full-Text 5 - A Hybrid Method of DEA and MODM in Grey Environment Alireza Alinezhad Open Access Article Abstract Page Full-Text 6 - Application of Grey Numbers and Neutrosophic Sets to Assessment Processes Michael Voskoglou 10.30495/fomj.2023.1992552.1104 Open Access Article Abstract Page Full-Text 7 - Supplier Selection in Grey Environment: A Grey, AHP, Bulls-Eye and ELECTRE Approach Mohammad Hassan Kamfiroozi Ali Bonyadi Naeini