D.C U.S.Bureau of the Census , 1980
Buku Teks
edited by Geoffrey Hawthorn
Frank Cass, 1978
Buku Teks SO
Fukuda, Shin-ichi
The Institute of Economic Reserach Hitolsubashi University , 1992
Buku Teks
by Economic and Social Comission for Asia and the Pacific, United Nations
United Nations, 1983
Buku Teks
Tangguh Pratysto
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2015
UI - Tesis Membership