by John G. Holt [and others]
Williams & Wilkins, 1993
Buku Teks
Inmagic INC., 1987
Buku Referensi
Voegelin, C.F.
Elsevier, 1977
Buku Teks
Debbianita, author
2015
UI - Tesis (Membership)
World Health Organization
World Health Organization, 1978
Buku Teks