http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Các quy định pháp luật hiện hành về trang bị phương tiện bảo vệ các nhân cho người làm nghề, công việc có yếu tố độc hại, nguy hiểm
Việt Nam (Cộng hòa xã hội chủ nghĩa)