Lindeburg, Michael R., author
Professional Publications, 1984
Buku Teks
Freeman, Roger L., author
Wiley, 1985
Buku Referensi
editor, Robert H. Perry
McGraw-Hill, 1976
Buku Referensi
Shigley, Joseph Edward, author
McGraw-Hill, 1983
Buku Referensi
Freeman, Roger L.
John Wiley & Sons, 1991
Buku Referensi