Making decisions on the dimensions of intellectual capital and its influences on the performance of organizations is of significant importance. On one hand, the complexity of decision-making process and the movement of factors influential on the decision-making atmosphere from absolute to fuzzy data make the utilization of efficient models highly essential. Considering this, through utilizing the modulation of research science techniques in operations, with a fuzzy approach, this study

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... d and prioritized the indexes of intellectual capital in Shahid TondGooyan Petrochemical Company in Iran. The tool for the precise evaluation is the expert questionnaire which was developed in the form of five major indexes and twenty two subscales (postulating Chandra Sekhara et al model 2005) and allying the experts' opinions in the sample including seventeen individuals selected through purposive sampling. The analysis of the collected data using the fuzzy modulation hierarchical analysis AHP-TOPSIS method with SuperDecision software shows that the human capital is the most prioritized criterion of all. After that come structural capital, relational capital, customer capital, and finally innovation capital. The organization can based on the priorities mentioned above allocate its resources, whether financial or time resources, for the purpose of promoting the key elements of its intellectual capital.