McDonald, Stephen L.
The Johns Hopkins Press, 1971
Buku Teks
by A. F. Gustafson [and others]
Comstock Publishing Associates, 1961
Buku Teks
Igna Ardiani Astuti, author
Program Pascasarjana Universitas Indonesia, 2013
UI - Tesis Membership
Hamby, Alonzo L.
Weybright and Talley, 1976
Buku Teks
Harlow, Ralph Volney, author
Holt, Rinehart and Wiston, 1961
Buku Teks