Hamide Özyürek and  Metin Yılmaz,  Application of Costing System in the Small and Medium Sized Enterprises (SME) in Turkey.   journal   = {International Journal of Economics and Management Engineering}, [online]. World Academy of Science, Engineering and Technology.
    February 2015, vol. 97(1). 389 - 397
    [viewed 09 April 2020]. Available from: https://publications.waset.org/pdf/10000807.