Amerika. Task Committee on Fasteners
American Society of Civil Engineers, 1996
Buku Referensi
Zwerger, Klaus, author
Birkhauser, 2000
Buku Teks
edited by Robert O. Parmley
McGraw-Hill , 1997
Buku Referensi
McGraw-Hill, 1996
Buku Teks
Robert O. Parmley, editor-in-chief
McGraw-Hill, 1989
Buku Referensi