Speed, F.W.
Indonesia today
Angus and Robertson, 1971
 Buku Teks SO
Moore, David R.
Indonesia today: an impressionistic picture
A.H. & A.W. Reed, 1973
 Buku Teks SO
Lusiana
Investment in Indonesia
Rajawali, 2012
 Buku Teks
Indonesia today current trends, future possibilities
Washington, D.C. The United States-Indonesia Society 2001,
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Mann, Richard I.
United states investment in Indonesia
Gateway Books, 1994
 Buku Teks SO