Roberge, Pierre R.
McGraw-Hill, 2000
Buku Referensi
Roberge
McGraw-Hill Book , 2000
Buku Teks
Urquhart, Leonard Church, editor
McGraw-Hill , 1950
Buku Teks
[edited by] W. Grant Ireson, Clyde F. Coombs, Jr., Richard Y. Moss
McGraw-Hill, 1995
Buku Referensi
John E. Ullmann, editor, Donald A. Christman, Bert Holtje, associate editors.
John Wiley & Sons, 1986
Buku Referensi