Dr. L. Arockiam and  A. Aloysius,  Attribute Weighted Class Complexity: A New Metric for Measuring Cognitive Complexity of OO Systems.   journal   = {International Journal of Computer and Information Engineering}, [online]. World Academy of Science, Engineering and Technology.
    October 2011, vol. 58(10). 1151 - 1156
    [viewed 26 January 2020]. Available from: https://publications.waset.org/pdf/2886.