Cunningham, William P., author
McGraw-Hill, Higher Education, 2009
Buku Teks
Cunningham, William P., author
McGraw-Hill, 2002
Buku Teks
Newman, Edward I., author
BlackWell Science , 2000
Buku Teks
Glynn, Henry J., author
Prentice-Hall, 1996
Buku Teks
Henry W. Art, general editor ; foreword by F. Herbert Bormann ; contributing editors, Daniel Botkin [and others]
Henry Holt, 1993
Buku Referensi