Sulaiman Ainin and  Yusniza Kamar ulzaman and  Abdul Ghani Farinda,  An Assessment of Technological Competencies on Professional Service Firms Business Performance.   journal   = {International Journal of Industrial and Systems Engineering}, [online]. World Academy of Science, Engineering and Technology.
    June 2010, vol. 42(6). 644 - 650
    [viewed 16 April 2024]. Available from: https://publications.waset.org/pdf/14930.