Theong, Maychuan, Rosli Abd Rashid, and Changsaar Chai. “Implication of Industrialised Building System (IBS) : The Case of Trade Contractors in Malaysia”. International Journal of Engineering & Technology 7, no. 2.29 (May 22, 2018): 766–771. Accessed May 4, 2024. https://sciencepubco.com/index.php/ijet/article/view/14253.