edited by Bernard M. Bass and Samuel D. Deep
Prentice-Hall, 1970
Buku Teks
edited by W. Lloyd Warner and Norman H. Martin
Harper & Brothers, 1959
Buku Teks
Albers, Henry, author
Wiley, 1974
Buku Teks
Deverell, C.S., author
London, Gee & Co
Buku Teks
Ewing, David W., author
Free Press of Glencoe, 1964
Buku Teks