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• Vahdat Zad.Mohammad Ali Identification and Priorities KBEs Challenges using ANN Method (Case study: Yazds KBEs) [ Vol.12, Issue 45 - Winter Year 1394]
• Vahidi.Hosein Survey of Factors affecting the development of knowledge-based companies, Using the Analytic Hierarchy, Case Study technology park of Tehran [ Vol.12, Issue 48 - Autumn Year 1395]