WASET
    K. Eryesil and  O. Esmen and  A. Beduk,  The Role of Strategic Flexibility for Achieving Sustainable Competition Advantage and Its Effect on Business Performance.   journal   = {International Journal of Industrial and Systems Engineering}, [online]. World Academy of Science, Engineering and Technology.
    September 2015, vol. 106(10). 3469 - 3475
    [viewed 24 April 2024]. Available from: https://publications.waset.org/pdf/10002643.