Asim N. and  M. Mazhar Manzoor and  Shariq A.,  Wangle the Organizational Internal and External Knowledge – A New Horizon for Sustaining the Business Stability.   journal   = {International Journal of Industrial and Systems Engineering}, [online]. World Academy of Science, Engineering and Technology.
    June 2010, vol. 42(6). 1081 - 1085
    [viewed 29 March 2020]. Available from: https://publications.waset.org/pdf/6557.