Nippon Steel Corporation, [date of publication not identified]
Buku Referensi
Merril, Grayson, editor
D. Van Nostrand Company, 1958
Buku Referensi
Nof, Shimon Y., 1946-
Springer, 2009
Buku Referensi
edited by John A. Havers and Frank W. Stubbs, Jr.
McGraw-Hill, 1971
Buku Referensi
Timber Engineering Company
F.W. Dodge Corp., 1956
Buku Referensi