Peters, Robert Henry
Cambridge University Press, 1983
Buku Teks
Sudarmani Djoko
1997
UI - Tesis (Membership)
Mairanti Prastika Putri
Fakultas Kesehatan Masyarakat Universitas Indonesia, 2013
UI - Skripsi (Membership)
Sharp, David
Bay Books, 1984
Buku Referensi
Sharp, David
Bay Books, 1984
Buku Referensi