Cherry, Judith, author
Curzon Press, 2001
Buku Teks
edited by Lorraine Eden
St. Martin's Press, 1993
Buku Teks
Anastassopoulos, Jean-Pierre, author
John Wiley & Sons, 1987
Buku Teks
edited by Tamir Agmon and Charles P. Kindleberger
MIT Press, 1977
Buku Teks
edited by Rob van Tulder, Alain Verbeke, Jorge Carneiro, Maria Alejandra Gonzalez-Perez
Emerald, 2016
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