Jaswinder Kaur and  Satwinder Singh and  Karanjeet Singh Kahlon,  Comparative Analysis of the Software Effort Estimation Models.   journal   = {International Journal of Computer and Systems Engineering}, [online]. World Academy of Science, Engineering and Technology.
    October 2008, vol. 22(10). 3402 - 3404
    [viewed 11 April 2021]. Available from: https://publications.waset.org/pdf/15566.