Carlson, Paul A.
South Western, 1957
Buku Teks
edited and selected by Benjamin Nelson
George Allen and Unwin, 1958
Buku Teks
Berle, Adolf A., Jr.
Harcourt, Brace, 1954
Buku Klasik
edited by E.M. Kirkpatrick ; assistant editors, C.M. Schwarz ... [and others]
Chambers, 1983
Buku Referensi
Prijono Tjiptoherijanto, 1948-
National Family Planning Coordinating Board , 1997
Buku Teks