WASET
    M. Ilyas and  M. W. Siddiqi,  The Impact of Revenue Gap on Economic Growth: A Case Study of Pakistan.   journal   = {International Journal of Economics and Management Engineering}, [online]. World Academy of Science, Engineering and Technology.
    July 2010, vol. 43(7). 1682 - 1687
    [viewed 29 March 2024]. Available from: https://publications.waset.org/pdf/13912.