Standley, Gerald B., author
Houghton Mifflin, 1971
Buku Teks
Epstein, Richard A., author
Academic Press, 1977
Buku Teks
Wiatrowski, Claude A., author
McGraw-Hill, 1980
Buku Teks
Gemignani, Michael C., author
Addison-Wesley, 1968
Buku Teks
Dubisch, Roy
Balisdell Publishing Company, 1963
Buku Teks