An, Nguyen, 		Linh, Nguyen, 		My, Bui, 		Phuong, Tu, 		Thu, Tran, AND 		Thuy, Pham.
" The Effect of Moral Disengagement on Bystander’s Behavior in Bullying Among Middle School Students" <em>VNU Journal of Science: Education Research</em> [Online], Volume 37 Number 3 (6 August 2021)