Parker, Harry, author
John Wiley & Sons, 1976
Buku Teks
Wight, James K., author
Pearson, 2016
Buku Teks
MacGregor, James G., author
Prentice-Hall, 2005
Buku Teks
Wight, James K., author
Prentice-Hall, 2009
Buku Teks
Ambrose, James E., author
John Wiley & Sons, 1997
Buku Teks