WASET
    P. Ahern and  D. Collery,  Lean Implementation: An Investigation in Successfully Adopting a Lean Philosophy.   journal   = {International Journal of Economics and Management Engineering}, [online]. World Academy of Science, Engineering and Technology.
    January 2024, vol. 205(1). 36 - 43
    [viewed 27 April 2024]. Available from: https://publications.waset.org/pdf/10013481.