WASET
    Ju-Seok Kim and  Sun-Ae Moon and  Tae-Gu Lee and  Seung-Jae Moon and  Jae-Heon Lee,  Calculation of Heating Load for an Apartment Complex with Unit Building Method.   journal   = {International Journal of Civil and Environmental Engineering}, [online]. World Academy of Science, Engineering and Technology.
    February 2009, vol. 26(2). 45 - 48
    [viewed 20 April 2024]. Available from: https://publications.waset.org/pdf/8561.