by Robert E. Asher ... [and others]
Brookings Institution, 1962
Buku Teks SO
edited by Norman N. Barish and Michel Verhulst
Pergamon Press , 1965
Buku Teks
edited by Lise Ostergaard
Routledge, 1992
Buku Teks SO
Bruton, Henry J.
Prentice-Hall, 1965
Buku Teks
by Economic and Social Comission for Asia and the Pacific, United Nations
United Nations, 1983
Buku Teks