Akyildiz, B. , Kadaifci, C. , Topcu, Y. , Ulengin, B.. "Prioritization of Customer Order Selection Factors by Utilizing Conjoint Analysis: A Case Study for a Structural Steel Firm". World Academy of Science, Engineering and Technology, Open Science Index 86, International Journal of Civil and Environmental Engineering, (2014), 8(2), 498 - 502.