Ahmad Latiffi, Aryani, et al. “Amalan Pematuhan Kelengkapan Pelindung Diri (PPE) Dalam Kalangan Pekerja Di Tapak Bina”. Research in Management of Technology and Business, vol. 1, no. 1, Dec. 2020, pp. 606-21, https://publisher.uthm.edu.my/periodicals/index.php/rmtb/article/view/554.