McVitty, Walter
Nelson, 1981
Buku Teks
edited by: Jasjit S. Bindra, Daniel Lednicer
John Wiley & Sons, 1982
Buku Teks
Herbert, Theodore T., author
Macmillan, 1976
Buku Teks
edited by Florence Howe
McGraw-Hill, 1975
Buku Teks
Wahjosumidjo, author
Rajawali, 2012
Buku Teks