TY - BOOK AU - Jefferelli Shamsul Bahrin AU - Agus Salim Mohd Banon AU - Krishna Gopal Rampal TI - Multiple choice questions on occupational safety and health SN - 9839908227 PY - 2002/// CY - Malaysia PB - National Institute Of Occupational Safety and Health Malaysia KW - Industrial hygiene KW - Industrial safety ER -