edited by E. Diczfalusy, P.D. Griffin, J. Khanna
World Health Organization , 1988
Buku Teks SO
Harper & Row, 1973
Buku Teks SO
Rafika Oktivaningrum
Fakultas Kesehatan Masyarakat Universitas Indonesia, 2013
UI - Skripsi Membership
The Massachusett Institute of Technology, 1977
Buku Teks SO
Mader, Sylvia S.
[Publisher not identified], [Date of publication not identified]
Buku Teks SO