Trager, Frank N., author
Frederick A. Preager, 1966
Buku Teks
Thompson, W. Scott (Willard Scott), 1942-, author
University of Queensland Press, 1977
Buku Teks
Southeast Asia Development Advisory Group of the Asia Society, 1970
Buku Teks
Moyar, Mark, author
Cambridge University Press, 2006
Buku Teks
Routledge, London: Routledge, 1991
Buku Teks