Angel, Myer
[publisher not identified], [date of publication not identified]
Buku Teks
Diebold, John
D> Van Nostrand Company, Inc, 1952
Buku Teks
Cohen, Morris R.
The Free Press , 1954
Buku Teks
Toyohide Watanabe, editor
[, Springer], 2012
eBooks
Brogan, Kelly
Thorson, 2016
Buku Teks