edited by, A.R. Omran and C.C. Standley
World Health Organization, 1976
Buku Teks
Petersen, William, author
Macmillan, 1969
Buku Teks
edited by Stanley Johnson
John Wiley & Sons, 1973
Buku Teks
Malthus, Thomas Robert
The University of Michigan Press, 1964
Buku Teks
oleh David Lucas ... [and others]; diterjemahkan, Nin Bakdi Sumanto dan Riningsih Saladi
Gadjah Mada University Press, 1984
Buku Teks