Min, Brian, 1975-
Power and the vote : elections and electricity in the developing world
NY Cambridge University Press, 2015
 Buku Teks SO
Poats, Rutherford M.
Technology for developing nations new directions for U.S. technical assistance
Brookings Institution, 1972
 Buku Teks SO
Energy issues new directions and goals : timely reports to keep journalists, scholars and the public abreast of developing issues, events and trends
Congressional Quartely , 1982
 Buku Teks SO
Directions in psycholinguistics
edited by Sheldon Rosenberg
Macmillan, 1965
 Buku Teks SO
Humanities and the computer: New directions
edited by Davis S. Miall
Clarendon Press, 1990
 Buku Teks SO