Messersmith, Joseph J.
Portland Cement Association, 2002
Buku Teks
Becker, Norman
McGraw-Hill, 2011
Buku Teks
O`Brien, James J.
Van Nostrand Reinhold, 1983
Buku Referensi
Becker, Norman
McGraw-Hill , 1980
Buku Teks
Henkin, Louis
Columbia University Press, 1958
Buku Teks