Administrative secrecy in developed countries / edited by Donald C. Rowat
Columbia University Press, 1979
 Buku Teks
Conference of the Non-Aligned Countries 1955-75
Edited by A.W. Singham and Tran Van Dinh
Third Press Review Books, 1976
 Buku Teks
KTT X gerakan non blok : tenth conference of heads of state or goverment of non-aligned countries
editor, Radik Utoyo Karya, JH. Wartono, Abu Chanief, Ben Wowor
Jakarta : Caraka Bhuwana, 1992,
 Buku Referensi
The least developed countries 1998 report
United Nations
United Nations, 1998
 Buku Teks
The least developed countries 1995 report
United Nations
United Nations , 1995
 Buku Teks
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