Ulubeyli, Serdar. “Industry-Wide Competitiveness Assessment through Fuzzy Synthetic Evaluation: the Case of Cement Industry”. Journal of Business Economics and Management 18, no. 1 (February 5, 2017): 35-53. Accessed February 23, 2025. https://btp.vilniustech.lt/index.php/JBEM/article/view/745.