Omar, Arisha, Yap Soon Ping, and Nurrul Hafeezah Sahak. “An Investigation on the Prevalence of Maintenance Workers Practicing or Applying Lockout Tagout During Maintenance Process”. Progress in Engineering Application and Technology 5, no. 1 (June 10, 2024): 842–846. Accessed July 2, 2024. https://penerbit.uthm.edu.my/periodicals/index.php/peat/article/view/14078.