Reid, Lori
Health in your hands
Thorson, 1993
Buku Teks SO
Payne, Wayne A.
Understanding your health
McGraw-Hill, 2002
Buku Teks
Hales, Dianne
An invitation to health : Build your future
Wadsworth and Cengage Learning, 2013
Buku Referensi
Managing your business guides: employees health and safety
Hamlyn Publishing Group Limited, 1979
Buku Teks
Managing your business guides: employees health and safety
Hamlyn Publishing Group Limited, 1980
Buku Teks