Zeisel, Hans, author
Say it with figures
Harper & Row , 1968
 Buku Teks
The World in figures
editorial information compiled by the Economist
The Economist Newspaper Limited, 1984
 Buku Referensi
Wanggang Yi, author
China: Facts and Figures 2010: electronic reseources Wanggang Yi, Wu = 中国：事实与数字 : 电子资源 王刚毅，吴伟，亓文公主编
China Intercontinental Press, 2010
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Facts on Canada
Ottawa Departemen of External Affairs 1963
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Facts Tell
Pyongyang Foreign Languages Publishing House 1960
 Buku Teks
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