Muhamad, Shahrul Addy Shazwan, et al. “Aspek Keselamatan Dan Kesihatan Pekerja Semasa Pandemik Covid-19 Di Tapak Bina, Bandar Alor Setar, Kedah”. Research in Management of Technology and Business, vol. 3, no. 2, Nov. 2022, pp. 467-80, https://publisher.uthm.edu.my/periodicals/index.php/rmtb/article/view/9570.