H. H. Goh and K. C. Goh and T. W. Seow and N. S. Said and S. E. P. Ang, Challenges in Adopting 3R Concept in the Heritage Building Restoration. journal = {International Journal of Civil and Environmental Engineering}, [online]. World Academy of Science, Engineering and Technology. January 2015, vol. 98(2). 142 - 149 [viewed 29 March 2024]. Available from: https://publications.waset.org/pdf/10000551.