Siti Aiysyah Tumin,  Uneven Development: Structural Changes and Income Outcomes across States in Malaysia.   journal   = {International Journal of Economics and Management Engineering}, [online]. World Academy of Science, Engineering and Technology.
    January 2021, vol. 170(2). 216 - 227
    [viewed 27 April 2024]. Available from: https://publications.waset.org/pdf/10011856.