Foydalanilgan internet saytlari
1.
https://www.osha.gov/safety-management/hazard-prevention
2.
https://www.cdc.gov/niosh/topics/hierarchy/default.html
3.
https://www.britannica.com/technology/security-and-
protection-system
4.
https://www.samhsa.gov/sites/default/files/20190718-samhsa-
risk-protective-factors.pdf
