Engel, Thomas, author
Upper Saddle River, [date of publication not identified]
Buku Teks
Engel, Thomas, author
Pearson Prentice Hall, 2006
Buku Teks
Bromberg, J. Philip, author
Allyn and Bacon, 1980
Buku Teks
Fried, Vojtech, author
McGraw-Hill, 1977
Buku Teks
Daniels, Farrington, author
John Wiley & Sons, 1944
Buku Teks