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• Abbasi Astamal.Mohammadraza The effect of Corporate Governance System Factors on Business unit Research and Development Expenses with emphasis on Economic Sanctions Conditions [ Vol.2, Issue 3 - Spring Year 1402]
• Abbaspour.Akbar The effect of Corporate Governance System Factors on Business unit Research and Development Expenses with emphasis on Economic Sanctions Conditions [ Vol.2, Issue 3 - Spring Year 1402]