In-home care for older people: health and supportive services
edited by Marcia G. Ory, Alfred P. Duncker
Sage , 1992
 Buku Teks
Newell, Kenneth W.
Health by the people
World Health Organization, 1975
 Buku Teks
Reese, Charles D.
Handbook of safety and health for the service industry: industrial safety and health for people-oriented services
CRC Press, 2009
 Buku Referensi
Yassi, Annalee
Basic environmental health
Oxford University Press, 2001
 Buku Teks
Kuzma, Jan W.
Basic statistics for the health sciences
Mayfield Publ., 1984
 Buku Teks