Widjojo Nitisastro, author
ISEAS publishing, 2011
Buku Teks
University of Queensland, 1990
Buku Teks
Seven Seas, 1958
Buku Teks
Pareto, Vilfredo, author
Frederick A. Praeger, 1966
Buku Teks
edited by William R. Spriegel and Clark E. Myers
R.D. Irwin, 1953
Buku Teks