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2) British Standards Institute (2000) OHSAS 18002, Occupational heath and safety management systems-Guidelines for the implementation of OHSAS 18001, 2001.
3) Ministry of Labor (1999) Guidelines on occupational safety and health management system (in Japanese).
4) International Labour Office (2001) Guidelines on occupational safety and health management systems.
5) Federation of Automobile Industry Management (1998) Safety and health management system (in Japanese).