Refaat H. Abd El Razek and  Ahmed M. Diab and  Sherif M. Hafez and  Remon F. Aziz,  Time-Cost-Quality Trade-off Software by using Simplified Genetic Algorithm for Typical Repetitive Construction Projects.   journal   = {International Journal of Civil and Environmental Engineering}, [online]. World Academy of Science, Engineering and Technology.
    January 2010, vol. 37(1). 22 - 31
    [viewed 03 June 2020]. Available from: