Challenges of cost management technique implementation during pre-tender in Klang valley construction projectMohd Shahraiz Mohd Nor, Mazianah Rahmat, Nurdiana Azmi and Mohd Hilmi Izwan Abd RahimE3S Web Conf., 347 (2022) 05009DOI: https://doi.org/10.1051/e3sconf/202234705009