Diemer, W.
J. Noorduijn en Zoon, 1959
Buku Referensi
IlL. The University of Chicago Press , 1970
Buku Teks
Culp, Archie W., author
McGraw-Hill, 1991
Buku Teks
Culp, Archie W., author
McGraw-Hill, 1979
Buku Teks
Davis, W. Jackson
W.W. Norton & Company, 1979
Buku Teks