WASET
    Johnson Adafin and  James O. B. Rotimi and  Suzanne Wilkinson and  Abimbola O. Windapo,  Achieving Design-Stage Elemental Cost Planning Accuracy: Case Study of New Zealand.   journal   = {International Journal of Economics and Management Engineering}, [online]. World Academy of Science, Engineering and Technology.
    January 2017, vol. 121(1). 115 - 120
    [viewed 25 April 2024]. Available from: https://publications.waset.org/pdf/10006140.