Rourke, John T., author
McGraw-Hill, 2001
Buku Teks
Nikolaos Tzifakis, editor
[Springer, ], 2012
eBooks
Lerche, Charles O., Jr., author
Oxford University Press, 1956
Buku Teks
Swanson, Timothy M., author
Macmillan, 1994
Buku Teks
Nau, Henry R., 1941-, author
SAGE Publications, 2019
Buku Teks