Hoyle, Mark S.W.
Laureate Press, 1981
Buku Teks
Jackson, John H., author
MIT Press, 1991
Buku Teks
edited by Marion Jansen, Joost Pauwelyn and Theresa Carpenter
Cambridge University Press, 2017
Buku Teks
edited by Rohini Acharya
Cambridge University Press, 2016
Buku Teks
Oceana Publications, 1993
Buku Teks