The statesman's year-book: stastistical and historical annual of the states of the world for the year 1992-1993
edited by Brian Hunter
Macmillan, 1992
 Buku Referensi
The statesman's year-book: stastistical and historical annual of the states of the world for the year 1991-1992
edited by Brian Hunter
Macmillan, 1991
 Buku Referensi
The statesman's year-book : statistical and historical annual of the states of the world for the year 1969-1970
edited by S.H. Steinberg and John Paxton
MacMillan St Martin's Press, 1969
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Mott, Frank Luther
American journalism: a history of newspapers in the United States through 260 years: 1690 to 1950
Macmillan, 1956
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Huntington, Samuel P.
The clash of civilizations and the remaking of world order
Simon & Schuster, c1996
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