edited by Eric Hillebrand, Siem Jan Koopman
Emerald, 2016
eBooks
Tuma, Nancy Brandon
Academic Press, 1984
Buku Teks
Connors, Michael M.
Pennsylvania International Textbook, 1967
Buku Teks
Gandolfo, Giancarlo
North-Holland Publishing, 1981
Buku Teks
Murnane, Gerald
Penguin Books, 1987
Buku Teks