Yusof, Mohd Reeza, Muhamad Faiz Musa, Noor Sahidah Samsudin, Mohammad Fadhil Mohammad, and Mohd Nurfaisal Baharuddin. 2016. “Industrialised Building System (IBS) Plan of Work”. International Review of Management and Marketing 6 (7S):299-305. https://econjournals.com./index.php/irmm/article/view/3271.