edited by S.H. Steinberg and John Paxton
MacMillan St Martin's Press, 1969
Buku Referensi
edited by Brian Hunter
Macmillan, 1992
Buku Referensi
editor, Lawrence H. Summers and Shekhar Shah
World Bank, 1993
Buku Teks
editor, Emilio Bautista, Javier Garcia-Lomas, Alfredo Navarro
Pergamon Press, 987
Buku Referensi
editor, Emilio Bautista, Javier Garcia-Lomas, Alfredo Navarro
Pergamon Press, 1987
Buku Referensi