WASET
    Edmond W.M. Lam and  Albert P.C. Chan and  Daniel W.M. Chan,  Qualitative Survey on Managing Building Maintenance Projects.   journal   = {International Journal of Civil and Environmental Engineering}, [online]. World Academy of Science, Engineering and Technology.
    May 2010, vol. 41(5). 110 - 114
    [viewed 25 April 2024]. Available from: https://publications.waset.org/pdf/14316.