Reyes, Gilbert, editor
Praeger , 2006
Buku Teks
Soemiatno
Division of Publications and Libraries Departement Health , 1975
Buku Teks
edited by A.S. Bhamhra, A.K. Chaudhary
Anmol Publications PVT, 1998
Buku Referensi
World Health Organization
World Health Organization, 1978
Buku Teks
Oxford University Press, 1979
Buku Teks